ZOOLOGY -PAGE 4
1. Which one of the following statements is NOT correct?
(a). Milk contains none of the B-vitamins
(b). Vitamin-A (retinol) deficiency leads to dry and scaly skin
(c). One of the symptoms of scurvy is pain in the joints
(d). Vitamin B1 (thiamine) deficiency can lead to heart failure
Answer: Milk contains none of the B-vitamins
2. Consider the following animals of India :
1. Crocodile 2. Elephant
Which of these is / are endangered species ?
(a). Only 1
(b). Only 2
(c). Both 1 and 2
(d). Neither 1 nor 2
Answer: Both 1 and 2
3. Octopus is
(a). an arthropod
(b). an echinoderm
(c). a hemichordate
(d). a mollusc
Answer: a mollusc
4. Consider the following conditions of a sick human body :
1. Swollen lymph nodes
2. Sweating at night
3. Loss of memory
4. Loss of weight
Which of these are the symptoms of AIDS ?
(a). 1 and 2
(b). 2, 3 and 4
(c). 1, 3 and 4
(d). 1, 2, 3 and 4
Answer: 1, 2, 3 and 4
5. With reference to normal human beings, consider the following statements :
1. In response to the presence of HCI, secretin is produced from the duodenum.
2. Enterogastrone is produced in the small intestine in response to the presence of fatty acids.
Which of these statements is / are correct ?
(a). Only 1
(b). Only 2
(c). Both 1 and 2
(d). Neither 1 nor 2
Answer: Both 1 and 2
6. With reference to the work of human kidney, consider the following statements :
1. After the waste is removed in the kidney, the cleaner blood is sent back through renal artery.
2. From Bowman's capsule, the filtered liquid passes through tiny tubes where much of the glucose is reabsorbed and sent back to the blood in the renal vein.
Which of these statements is / are correct ?
(a). Only 1
(b). Only 2
(c). Both 1 and 2
(d). Neither 1 nor 2
Answer: Both 1 and 2
7. In which stage the chromosomes move to the opposite poles during mitosis?
(a). Prophase
(b). Metaphase
(c). Anaphase
(d). Telophase
Answer : Anaphase
8. The type of ribosome formed from 40 s and 60 s ribosomal subunits is
(a). 70 s
(b). 80 s
(c). 90 s
(d). 100 s
Answer : 80 s
9. The smallest length of DNA capable of mutation is called
(a). Cistron
(b). Mutagen
(c). Recon
(d). Muton
Answer : Muton
10. The first vertebrate to lay eggs on land was
(a). Amphibian
(b). Birds
(c). Mammal
(d). Reptile
Answer : Reptile
11. Injaz, is the name of the world's first cloned
(a) Camel
(b) Goat
(c) Pig
(d) Sheep
Ans: A
12. Which of the following enzymes are known as molecular scissors?
(a). Hydrolases
(b). Ligases
(c). DNA polymerases
(d). Restriction endonucleases
Answer : Restriction endonucleases
13. The gene which synthesizes repressor protein is the
(a). Structural gene
(b). Regulator gene
(c). Operator gene
(d). Promotor gene
Answer : Regulator gene
14. In human karyotype autosomes are divided into-----groups.
(a). Six groups as A to F
(b). Seven groups as A to G
(c). Eight groups as A to H
(d). Nine groups as A to I
Answer : Seven groups as A to G
15. The diagrammatic representation of a karyotype is called
(a). Pedigree analysis
(b). Punnett square
(c). DNA sequencing
(d). Ideogram
Answer : Ideogram
16. The science of improving the hereditary qualities of future generation of mankind is
(a). Genetics
(b). Eugenics
(c). Transgenic
(d). Euthenics
Answer : Eugenics
17. Chromosome theory of linkage was formulated by
(a). Morgan and Castle
(b). Morgan and Bateson
(c). Morgan and Sutton
(d). Bateson and Punnet
Answer : Morgan and Castle
18. Dihybrid test cross ratio is
(a). 3: 1
(b). 1: 2: 1
(c). 9: 3: 3: 1
(d). 1 : 1 : 1 : 1
Answer : 1 : 1 : 1 : 1
19. Which one among these is a monosomic condition of sex chromosome in human is
(a). Down's syndrome
(b). Patau syndrome
(c). Turner's syndrome
(d). Klrncfcltcr's syndrome
Answer : Turner's syndrome
20. Glycogenesis involves the following chain of reaction.
Choose the correct answer :
(a). Glucose - 6 - PO 4 → Glucose - I - PO 4 → Glycogen → Glucose
(b). Glucose - 1 - PO 4 → Glycogen → Glucose → Glucose - 6 - PO 4
(c). Glucose → Glucose - 6- P04 → Glucose - I - P04 →Glycogen
(d). Glycogen → Glucose → Glucose - 6 - PO 4 → Glucose - I - PO 4
Answer : Glucose - 1 - PO 4 → Glycogen → Glucose → Glucose - 6 - PO 4
21. Choose the correct pair
(a). Vitamin A-Fat soluble
(b). Vitamin B - Fat soluble
(c). Vitamin C - Fat soluble
(d). Vitamin D - Water soluble
Answer : Vitamin A-Fat soluble
22. In liver, urea is formed by
(a). Ornithine cycle
(b). Glycogenesis
(c). Glycolysis
(d). Glycogenolysis
Answer : Ornithine cycle
23. The art of swallowing bolus is called
(a). digestion
(b). deglutition
(c). anabolism
(d). assimilation
Answer : deglutition
24. The gastric glands of stomach secrete
(a). Trypsinogen
(b). Bile
(c). Insulin
(d). Pepsinogen
Answer : Pepsinogen
25. Space between two lungs is known as
(a). Diaphragm
(b). Pericardium
(c). Peristonium
(d). Mediastinum
Ans : D
(a). Milk contains none of the B-vitamins
(b). Vitamin-A (retinol) deficiency leads to dry and scaly skin
(c). One of the symptoms of scurvy is pain in the joints
(d). Vitamin B1 (thiamine) deficiency can lead to heart failure
Answer: Milk contains none of the B-vitamins
2. Consider the following animals of India :
1. Crocodile 2. Elephant
Which of these is / are endangered species ?
(a). Only 1
(b). Only 2
(c). Both 1 and 2
(d). Neither 1 nor 2
Answer: Both 1 and 2
3. Octopus is
(a). an arthropod
(b). an echinoderm
(c). a hemichordate
(d). a mollusc
Answer: a mollusc
4. Consider the following conditions of a sick human body :
1. Swollen lymph nodes
2. Sweating at night
3. Loss of memory
4. Loss of weight
Which of these are the symptoms of AIDS ?
(a). 1 and 2
(b). 2, 3 and 4
(c). 1, 3 and 4
(d). 1, 2, 3 and 4
Answer: 1, 2, 3 and 4
5. With reference to normal human beings, consider the following statements :
1. In response to the presence of HCI, secretin is produced from the duodenum.
2. Enterogastrone is produced in the small intestine in response to the presence of fatty acids.
Which of these statements is / are correct ?
(a). Only 1
(b). Only 2
(c). Both 1 and 2
(d). Neither 1 nor 2
Answer: Both 1 and 2
6. With reference to the work of human kidney, consider the following statements :
1. After the waste is removed in the kidney, the cleaner blood is sent back through renal artery.
2. From Bowman's capsule, the filtered liquid passes through tiny tubes where much of the glucose is reabsorbed and sent back to the blood in the renal vein.
Which of these statements is / are correct ?
(a). Only 1
(b). Only 2
(c). Both 1 and 2
(d). Neither 1 nor 2
Answer: Both 1 and 2
7. In which stage the chromosomes move to the opposite poles during mitosis?
(a). Prophase
(b). Metaphase
(c). Anaphase
(d). Telophase
Answer : Anaphase
8. The type of ribosome formed from 40 s and 60 s ribosomal subunits is
(a). 70 s
(b). 80 s
(c). 90 s
(d). 100 s
Answer : 80 s
9. The smallest length of DNA capable of mutation is called
(a). Cistron
(b). Mutagen
(c). Recon
(d). Muton
Answer : Muton
10. The first vertebrate to lay eggs on land was
(a). Amphibian
(b). Birds
(c). Mammal
(d). Reptile
Answer : Reptile
11. Injaz, is the name of the world's first cloned
(a) Camel
(b) Goat
(c) Pig
(d) Sheep
Ans: A
12. Which of the following enzymes are known as molecular scissors?
(a). Hydrolases
(b). Ligases
(c). DNA polymerases
(d). Restriction endonucleases
Answer : Restriction endonucleases
13. The gene which synthesizes repressor protein is the
(a). Structural gene
(b). Regulator gene
(c). Operator gene
(d). Promotor gene
Answer : Regulator gene
14. In human karyotype autosomes are divided into-----groups.
(a). Six groups as A to F
(b). Seven groups as A to G
(c). Eight groups as A to H
(d). Nine groups as A to I
Answer : Seven groups as A to G
15. The diagrammatic representation of a karyotype is called
(a). Pedigree analysis
(b). Punnett square
(c). DNA sequencing
(d). Ideogram
Answer : Ideogram
16. The science of improving the hereditary qualities of future generation of mankind is
(a). Genetics
(b). Eugenics
(c). Transgenic
(d). Euthenics
Answer : Eugenics
17. Chromosome theory of linkage was formulated by
(a). Morgan and Castle
(b). Morgan and Bateson
(c). Morgan and Sutton
(d). Bateson and Punnet
Answer : Morgan and Castle
18. Dihybrid test cross ratio is
(a). 3: 1
(b). 1: 2: 1
(c). 9: 3: 3: 1
(d). 1 : 1 : 1 : 1
Answer : 1 : 1 : 1 : 1
19. Which one among these is a monosomic condition of sex chromosome in human is
(a). Down's syndrome
(b). Patau syndrome
(c). Turner's syndrome
(d). Klrncfcltcr's syndrome
Answer : Turner's syndrome
20. Glycogenesis involves the following chain of reaction.
Choose the correct answer :
(a). Glucose - 6 - PO 4 → Glucose - I - PO 4 → Glycogen → Glucose
(b). Glucose - 1 - PO 4 → Glycogen → Glucose → Glucose - 6 - PO 4
(c). Glucose → Glucose - 6- P04 → Glucose - I - P04 →Glycogen
(d). Glycogen → Glucose → Glucose - 6 - PO 4 → Glucose - I - PO 4
Answer : Glucose - 1 - PO 4 → Glycogen → Glucose → Glucose - 6 - PO 4
21. Choose the correct pair
(a). Vitamin A-Fat soluble
(b). Vitamin B - Fat soluble
(c). Vitamin C - Fat soluble
(d). Vitamin D - Water soluble
Answer : Vitamin A-Fat soluble
22. In liver, urea is formed by
(a). Ornithine cycle
(b). Glycogenesis
(c). Glycolysis
(d). Glycogenolysis
Answer : Ornithine cycle
23. The art of swallowing bolus is called
(a). digestion
(b). deglutition
(c). anabolism
(d). assimilation
Answer : deglutition
24. The gastric glands of stomach secrete
(a). Trypsinogen
(b). Bile
(c). Insulin
(d). Pepsinogen
Answer : Pepsinogen
25. Space between two lungs is known as
(a). Diaphragm
(b). Pericardium
(c). Peristonium
(d). Mediastinum
Ans : D
26:-Deficiency of Tocopherol in human body leads to,
A:-Beriberi
B:-Pellagra
C:-Infertility
D:-Scurvy
Ans: B
27:-Example for a uricotelic animal
A:-kangaroos
B:-bony fish
C:-cockroach
D:-frog
Ans: C
28:-The part of brain which controls respiration
A:-cerebrum
B:-cerebellum
C:-medulla oblongata
D:-pons
Ans: C
29:-Acromegaly is due to
A:-hypersecretion of growth hormone
B:-hyposecretion of growth hormone
C:-hypersecretion of ACTH
D:-hyposecretion of ACTH
Ans: A
30:-A child's blood group is O. The parents blood group can not be
A:-A and B
B:-A and A
C:-AB and O
D:-B and O
Ans: C
31:-The nitrogen base which pair with adenine in DNA
A:-uracil
B:-thymine
C:-cytosine
D:-guanine
Ans: B
32:-Which one of the following is the most primitive ancestor of man ?
A:-Homo habilis
B:-Australopithecus
C:-Neanderthal man
D:-Ramapithecus
Ans: D
33:-Kala azar is a disease caused by
A:-fungus
B:-bacteria
C:-virus
D:-protozoa
Ans: D
34:-Majority of Carbon dioxide in human body is transported to lungs
A:-as bicarbonates
B:-as carbonic acid
C:-attached to haemoglobin
D:-attached to leucocytes
Ans: A
35:-Which of the following is a true fish ?
A:-cuttle fish
B:-silver fish
C:-jelly fish
D:-flying fish
Ans: D
36. A few statements with regard to sexual reproduction are given below:
i. Sexual reproduction does not always require two individuals
ii. Sexual reproduction generally involves gametic fusion
iii. Meiosis never occurs during sexual reproduction
iv. External fertilization is a rule during sexual reproduction
Choose the correct statements from the options below:
a)i and iv
b)i and ii
c)ii and iii
d)i and iv
Ans: D
37. Given below are a few statements related to external fertilization. Choose the correct statements:
I. The male and female gametes are formed and released simultaneously
ii. Only a few gametes are released into the medium
iii. Water is the medium in a majority of organisms exhibiting external fertilization
iv. Offspring formed as a result of external fertilization have better chance of survival than those formed inside the organism
a)iii and iv
b) i and iii
c)ii and iv
d)i and iv
Ans: B
38. “Nothing lives forever, but life continues”. What does it mean?
a) Older dies but new ones are produced by reproduction
b) Nothing can produce without death
c) Death has nothing to do with the continuation of life
d) Parthenogenesis is must for sexual reproduction
Ans: A
39. A few statements describing certain features of reproduction are given below.
Select the options that are true for both sexual and asexual reproduction from the options given:
i.Gametic fusion takes place
ii.Transfer of genetic material takes place
iii.Reduction division takes place
iv.Progeny have some resemblance with parents
a)i and ii
b)ii and iii
c)ii and iv
d)i and ii
Ans: C
40. Which of the following statements, support the view that elaborate sexual reproductive process develops much later in the organic evolution?
i) Lower groups of organisms have simpler body design
ii) Asexual reproduction is common in lower groups
iii) Asexual reproduction is common in higher groups of organisms
iv) The high incidence of sexual reproduction is in angiosperms and vertebrates.
a)i, ii and iii
b)i, iii and iv
c)i, ii, and iv
d)ii, iii and iv
Ans: C
41. The association of histone H1 with a nucleosome indicates
a) Transcription is occurring
b) DNA replication is occurring
c) The DNA is condensed into chromatin fibre
d) The DNA double helix is exposed
Ans: C
42. Which of the following is not required for any of the techniques of DNA fingerprinting available at present?
a) Zinc finger analysis
b) Restriction enzymes
c) DNA-DNA hybridization
d) polymerase chain reaction
Ans: A
43. Satellite DNA is important because it
a) codes for proteins needs in cell cycle
b) shows high degree of polymorphism in population and also the same degree of polymorphism in an individual, which is heritable from parents to children
c) Does not code for protein and is same in all members of the population.
d) Codes for enzymes needed for DNA replication.
Ans: B
44. The diagram shows an important concept in the genetic implication of DNA. Fill in the blanks A to C.
A B C
DNA ----→mRNA ---------→protein -proposed by-----
a) A- trancscription, B- replication C-James Watson
b) A- trancscription, B- trancscription, C-Erwin
c) A- trancscription, B- tranlation, C-Francis Crick
d) A- trancscription, B- extension, C-Rosalind Frankin
Ans: C
45. Select the two statements out of the four (I –IV) given below about lac operon.
i. Glucose or galactose may bind with the repressor and inactive it.
ii. In the absence of lactose, the repressor binds with the operator region
iii. The z-gene codes for permease.
iv. This was elucidated by Francois Jacob and Jacques monod.
The correct statements are
a) i and ii
b) i and iii
c) ii and iv
d) i and ii
Ans: C
46. Which one of the following pairs of codons is correctly matched with their function or the single for the particular amino acid?
a) GUU, GCU – Alanine
b) UAG, UGA – Stop codon
c) AUG, ACG - start/methionine
d) UUA, UCA – Leucine
Ans: B
47. In Hardy-Weinberg equation, the frequency of heterozygous individual is represented by
a) P2 b)2pq c) pq d) q2
Ans: B
48. The correct order in Era is
a)Palaeozoic---- Archaeozoic --- Coenozoic
b)Archaeozoic ---Palaeozoic------ Proterozoic
c)Palaeozoic--- Mesozoic ----- Coenozoic
d)Mesozoic ---- Archaeozoic---- Proterozoic
Ans: C
49. Which one is true state regarding DNA polymerase used in PCR?
a) It is used to ligate introduced DNA in recipient cells. b) It serves as selectable marker
c) It is isolated from a virus. d) It remains active at high temperature.
Ans: D
50. For transformation, micro-particles coated with DNA to be bombarded with gene gun are made up of
a) Silver or Platinum b) Platinum or Zinc
c) Silicon or Platinum d) Gold or Tungsten
Ans: D
A:-Beriberi
B:-Pellagra
C:-Infertility
D:-Scurvy
Ans: B
27:-Example for a uricotelic animal
A:-kangaroos
B:-bony fish
C:-cockroach
D:-frog
Ans: C
28:-The part of brain which controls respiration
A:-cerebrum
B:-cerebellum
C:-medulla oblongata
D:-pons
Ans: C
29:-Acromegaly is due to
A:-hypersecretion of growth hormone
B:-hyposecretion of growth hormone
C:-hypersecretion of ACTH
D:-hyposecretion of ACTH
Ans: A
30:-A child's blood group is O. The parents blood group can not be
A:-A and B
B:-A and A
C:-AB and O
D:-B and O
Ans: C
31:-The nitrogen base which pair with adenine in DNA
A:-uracil
B:-thymine
C:-cytosine
D:-guanine
Ans: B
32:-Which one of the following is the most primitive ancestor of man ?
A:-Homo habilis
B:-Australopithecus
C:-Neanderthal man
D:-Ramapithecus
Ans: D
33:-Kala azar is a disease caused by
A:-fungus
B:-bacteria
C:-virus
D:-protozoa
Ans: D
34:-Majority of Carbon dioxide in human body is transported to lungs
A:-as bicarbonates
B:-as carbonic acid
C:-attached to haemoglobin
D:-attached to leucocytes
Ans: A
35:-Which of the following is a true fish ?
A:-cuttle fish
B:-silver fish
C:-jelly fish
D:-flying fish
Ans: D
36. A few statements with regard to sexual reproduction are given below:
i. Sexual reproduction does not always require two individuals
ii. Sexual reproduction generally involves gametic fusion
iii. Meiosis never occurs during sexual reproduction
iv. External fertilization is a rule during sexual reproduction
Choose the correct statements from the options below:
a)i and iv
b)i and ii
c)ii and iii
d)i and iv
Ans: D
37. Given below are a few statements related to external fertilization. Choose the correct statements:
I. The male and female gametes are formed and released simultaneously
ii. Only a few gametes are released into the medium
iii. Water is the medium in a majority of organisms exhibiting external fertilization
iv. Offspring formed as a result of external fertilization have better chance of survival than those formed inside the organism
a)iii and iv
b) i and iii
c)ii and iv
d)i and iv
Ans: B
38. “Nothing lives forever, but life continues”. What does it mean?
a) Older dies but new ones are produced by reproduction
b) Nothing can produce without death
c) Death has nothing to do with the continuation of life
d) Parthenogenesis is must for sexual reproduction
Ans: A
39. A few statements describing certain features of reproduction are given below.
Select the options that are true for both sexual and asexual reproduction from the options given:
i.Gametic fusion takes place
ii.Transfer of genetic material takes place
iii.Reduction division takes place
iv.Progeny have some resemblance with parents
a)i and ii
b)ii and iii
c)ii and iv
d)i and ii
Ans: C
40. Which of the following statements, support the view that elaborate sexual reproductive process develops much later in the organic evolution?
i) Lower groups of organisms have simpler body design
ii) Asexual reproduction is common in lower groups
iii) Asexual reproduction is common in higher groups of organisms
iv) The high incidence of sexual reproduction is in angiosperms and vertebrates.
a)i, ii and iii
b)i, iii and iv
c)i, ii, and iv
d)ii, iii and iv
Ans: C
41. The association of histone H1 with a nucleosome indicates
a) Transcription is occurring
b) DNA replication is occurring
c) The DNA is condensed into chromatin fibre
d) The DNA double helix is exposed
Ans: C
42. Which of the following is not required for any of the techniques of DNA fingerprinting available at present?
a) Zinc finger analysis
b) Restriction enzymes
c) DNA-DNA hybridization
d) polymerase chain reaction
Ans: A
43. Satellite DNA is important because it
a) codes for proteins needs in cell cycle
b) shows high degree of polymorphism in population and also the same degree of polymorphism in an individual, which is heritable from parents to children
c) Does not code for protein and is same in all members of the population.
d) Codes for enzymes needed for DNA replication.
Ans: B
44. The diagram shows an important concept in the genetic implication of DNA. Fill in the blanks A to C.
A B C
DNA ----→mRNA ---------→protein -proposed by-----
a) A- trancscription, B- replication C-James Watson
b) A- trancscription, B- trancscription, C-Erwin
c) A- trancscription, B- tranlation, C-Francis Crick
d) A- trancscription, B- extension, C-Rosalind Frankin
Ans: C
45. Select the two statements out of the four (I –IV) given below about lac operon.
i. Glucose or galactose may bind with the repressor and inactive it.
ii. In the absence of lactose, the repressor binds with the operator region
iii. The z-gene codes for permease.
iv. This was elucidated by Francois Jacob and Jacques monod.
The correct statements are
a) i and ii
b) i and iii
c) ii and iv
d) i and ii
Ans: C
46. Which one of the following pairs of codons is correctly matched with their function or the single for the particular amino acid?
a) GUU, GCU – Alanine
b) UAG, UGA – Stop codon
c) AUG, ACG - start/methionine
d) UUA, UCA – Leucine
Ans: B
47. In Hardy-Weinberg equation, the frequency of heterozygous individual is represented by
a) P2 b)2pq c) pq d) q2
Ans: B
48. The correct order in Era is
a)Palaeozoic---- Archaeozoic --- Coenozoic
b)Archaeozoic ---Palaeozoic------ Proterozoic
c)Palaeozoic--- Mesozoic ----- Coenozoic
d)Mesozoic ---- Archaeozoic---- Proterozoic
Ans: C
49. Which one is true state regarding DNA polymerase used in PCR?
a) It is used to ligate introduced DNA in recipient cells. b) It serves as selectable marker
c) It is isolated from a virus. d) It remains active at high temperature.
Ans: D
50. For transformation, micro-particles coated with DNA to be bombarded with gene gun are made up of
a) Silver or Platinum b) Platinum or Zinc
c) Silicon or Platinum d) Gold or Tungsten
Ans: D
51. Restriction endonucleases are enzymes which
a) Make cuts at specific positions within the DNA molecule.
b) Recognize a specific nucleotide sequence for binding of DNA ligase.
c) Restrict the action of the enzyme DNA polymerase.
d) Remove nucleotides from the ends of the DNA molecule.
Ans: A
52. The colonies of recombinant bacteria appear white in contrast to blue colonies of non-recombinant bacteria because of
a) Non-recombinant bacteria containing β-galactosidase.
b) Insertional inactivation of α-galactosidase in nonrecombinant bacteria.
c) Insertional inactivation of α-galactosidase in recombinant bacteria.
d) Inactivation of glycosidase enzyme in recombinant bacteria
Ans: A
53. In genetic engineering, a DNS segment (gene) of interest is transferred to the host cell through a vector. Consider the following four agents (A to D) in this regard and select correct option about which one or more of these can be used as vector/vectors.
A) A bacterium
B) Plasmid
C) Plasmodium
D) Bacteriophage
a) (A), (B) and (D) only
b) (A) only
c) (A) and (C) only
d) (B) and (D) only
Ans: D
54. Which one of the following palindromic base sequences in DNA can be easily cut at about the middle by some particular restriction enzyme?
a) 5’ – CGTTCG – 3’ 3’ –ATGGTA -5’
b) 5’-GATATG -3’ 3’ CTACTA -5’
c) 5’ –GAATTC – 3’ 3’ – CTTAAG-5’
d) 5’ –CACGTA -3’ 3’ –CTCAGT -5’
Ans: C
55. Which body of the Government of India regulates GM research and safety of introducing GM organism for public services?
a) Bio-safety committee
b) Indian council of agricultural research
c) Genetic engineering approval committee
d) Research committee on Genetic manipulation
Ans: C
56. Stirred – tank bioreactors have been designed for
a) Addition of preservatives of the product
b) Purification of the product
c) Ensuring anaerobic conditions in the culture vessel
d) Availability of oxygen throughout the process
Ans: D
57. There is a restriction endonuclease called EcoRI. What does ‘co’ part in it stand for?
a) Coelom
b) Coenzyme
c) Coli
d) Colon
Ans: C
58. A biologist studies the population of eats in a barn. He found that the average natality was 250, average mortality is 240, immigration is 20 and emigration to be 30. The net increase in population is
a) 10
b) 15
c) 05
d) Zero
Ans: D
59. Which one of the following is most appropriately defined?
a) Host is an organism which provides food to another organism.
b) Amensalism is a relationship in which one species is benefited whereas the other is unaffected.
c) Predator is an organism that catches and kills other organism for food.
d) Parasite is an organism which always lives inside the body of other organism and may kill it.
Ans: C
60. An association of individuals of different species living in the same habitat and having functional interaction is:
a) Biotic community b) Ecosystem c) Population d) Ecological niche
Ans: A
61. Gause’s principle of competitive exclusion states that:
a) More abundant species will exclude the less abundant species through competition
b) Competition for the same resources excludes species having different food preferences
c) No two species can occupy the same niche indefinitely for the same limiting resources
d) Larger organisms exclude smaller ones through competition
Ans: C
62. When does the growth rate of a population following the logistic model equal zero? The logistic model is given as dN/dt=rN(1-N/K): a) When N/K is exactly one
b) When N nears the carrying capacity of the habitat
c) When N/K equals zero
d) When death rate is greater than birth rate
Ans: A
63. People who have migrated from the planes to an area adjoining Rohtang Pass about six months back
a) Have more RBC’s and their haemoglobin has a lower binding affinity to O2.
b) Are not physically fit to play games like football
c) Suffer from altitude sickness with symptoms like nausea, fatigue, etc.
d) Have the usual RBC count but then haemoglobin has very high binding affinity to O2.
Ans: A
64. Which one of the following is a wrong statement?
a) Most of the forests have been lost in tropical areas.
b) Ozone in upper part of atmosphere is harmful to animals.
c) Greenhouse effect is natural phenomenon
d) Eutrophication is a natural phenomenon in freshwater bodies.
Ans: B
65. A scrubber in the exhaust of a chemical industrial plant removes
a) Gases like sulphur dioxide.
b) Particulate matter of the size 5 micrometer or above.
c) Gases like ozone and methane
d) Particulate matter of the size 2.5 micrometer or less
Ans: B
66. Measuring Biochemical Oxygen Demand (BOD) is a method used for
a) Estimating the amount of organic matter in sewage water.
b) Working out the efficiency of oil driven automobile engines.
c) Measuring the activity of saccharomyces cerevisiae in producing curd on a commercial scales
d) Working out the efficiency of RBCs about their capacity to carry oxygen
Ans: A
a) Make cuts at specific positions within the DNA molecule.
b) Recognize a specific nucleotide sequence for binding of DNA ligase.
c) Restrict the action of the enzyme DNA polymerase.
d) Remove nucleotides from the ends of the DNA molecule.
Ans: A
52. The colonies of recombinant bacteria appear white in contrast to blue colonies of non-recombinant bacteria because of
a) Non-recombinant bacteria containing β-galactosidase.
b) Insertional inactivation of α-galactosidase in nonrecombinant bacteria.
c) Insertional inactivation of α-galactosidase in recombinant bacteria.
d) Inactivation of glycosidase enzyme in recombinant bacteria
Ans: A
53. In genetic engineering, a DNS segment (gene) of interest is transferred to the host cell through a vector. Consider the following four agents (A to D) in this regard and select correct option about which one or more of these can be used as vector/vectors.
A) A bacterium
B) Plasmid
C) Plasmodium
D) Bacteriophage
a) (A), (B) and (D) only
b) (A) only
c) (A) and (C) only
d) (B) and (D) only
Ans: D
54. Which one of the following palindromic base sequences in DNA can be easily cut at about the middle by some particular restriction enzyme?
a) 5’ – CGTTCG – 3’ 3’ –ATGGTA -5’
b) 5’-GATATG -3’ 3’ CTACTA -5’
c) 5’ –GAATTC – 3’ 3’ – CTTAAG-5’
d) 5’ –CACGTA -3’ 3’ –CTCAGT -5’
Ans: C
55. Which body of the Government of India regulates GM research and safety of introducing GM organism for public services?
a) Bio-safety committee
b) Indian council of agricultural research
c) Genetic engineering approval committee
d) Research committee on Genetic manipulation
Ans: C
56. Stirred – tank bioreactors have been designed for
a) Addition of preservatives of the product
b) Purification of the product
c) Ensuring anaerobic conditions in the culture vessel
d) Availability of oxygen throughout the process
Ans: D
57. There is a restriction endonuclease called EcoRI. What does ‘co’ part in it stand for?
a) Coelom
b) Coenzyme
c) Coli
d) Colon
Ans: C
58. A biologist studies the population of eats in a barn. He found that the average natality was 250, average mortality is 240, immigration is 20 and emigration to be 30. The net increase in population is
a) 10
b) 15
c) 05
d) Zero
Ans: D
59. Which one of the following is most appropriately defined?
a) Host is an organism which provides food to another organism.
b) Amensalism is a relationship in which one species is benefited whereas the other is unaffected.
c) Predator is an organism that catches and kills other organism for food.
d) Parasite is an organism which always lives inside the body of other organism and may kill it.
Ans: C
60. An association of individuals of different species living in the same habitat and having functional interaction is:
a) Biotic community b) Ecosystem c) Population d) Ecological niche
Ans: A
61. Gause’s principle of competitive exclusion states that:
a) More abundant species will exclude the less abundant species through competition
b) Competition for the same resources excludes species having different food preferences
c) No two species can occupy the same niche indefinitely for the same limiting resources
d) Larger organisms exclude smaller ones through competition
Ans: C
62. When does the growth rate of a population following the logistic model equal zero? The logistic model is given as dN/dt=rN(1-N/K): a) When N/K is exactly one
b) When N nears the carrying capacity of the habitat
c) When N/K equals zero
d) When death rate is greater than birth rate
Ans: A
63. People who have migrated from the planes to an area adjoining Rohtang Pass about six months back
a) Have more RBC’s and their haemoglobin has a lower binding affinity to O2.
b) Are not physically fit to play games like football
c) Suffer from altitude sickness with symptoms like nausea, fatigue, etc.
d) Have the usual RBC count but then haemoglobin has very high binding affinity to O2.
Ans: A
64. Which one of the following is a wrong statement?
a) Most of the forests have been lost in tropical areas.
b) Ozone in upper part of atmosphere is harmful to animals.
c) Greenhouse effect is natural phenomenon
d) Eutrophication is a natural phenomenon in freshwater bodies.
Ans: B
65. A scrubber in the exhaust of a chemical industrial plant removes
a) Gases like sulphur dioxide.
b) Particulate matter of the size 5 micrometer or above.
c) Gases like ozone and methane
d) Particulate matter of the size 2.5 micrometer or less
Ans: B
66. Measuring Biochemical Oxygen Demand (BOD) is a method used for
a) Estimating the amount of organic matter in sewage water.
b) Working out the efficiency of oil driven automobile engines.
c) Measuring the activity of saccharomyces cerevisiae in producing curd on a commercial scales
d) Working out the efficiency of RBCs about their capacity to carry oxygen
Ans: A
- Zoology
- Zoology- Page 1
- Zoology- Page 2
- Zoology- Page 3
- Zoology- Page 4
- Zoology- Page 5
- Zoology- Page 6
- Zoology- Page 7
- Zoology- Page 8
- Zoology- Page 9
- Zoology- Page 10
- Zoology- Page 11
- Zoology Notes- Page 1- Nutrition
- Zoology Notes- Page 2- Balanced Diet
- Zoology Notes- Page 3- Human Digestive System
- Zoology Notes- Page 4- Human Respiration
- Zoology Notes- Page 5- Genetics