PHARMACOGNOSY
PHARMACOGNOSY MCQs
1:-Which of the following ecosystem has highest productivity?
A:-Grassland
B:-Estuary
C:-Desert
D:-Tundra
Ans: B
2:-Catmab is a kind of
A:-isozyme B:-coenzyme
C:-apoenzyme D:-abzyme
Ans: D
3:-Identify the incorrect statement about nitrogenase enzyme
A:-It is an Mo-Fe protein
B:-Catalyses the conversion `"N_2"` of to `"NH_3"`
C:-Insensitive to `"O_2"`
D:-nif gene help in its formation
Ans: C
4:-Separation and blotting of proteins is done in
A:-Western blot
B:-Southern blot
C:-Northern blot
D:-None of the above
Ans: A
5:-Which of the following is not a software used in bioinformatics?
A:-EMBOSS B:-AMPHORA
C:-PROSITE D:-Orange
Ans: C
6:-HGPRT is associated with which of the following?
A:-Purine B:-Pyridine
C:-Pyramidine D:-Pyridoxine
Ans: A
7:-Cycling of which element does not include a gas phase?
A:-Carbon
B:-Nitrogen
C:-Sulphur
D:-Phosphorus
Ans: D
8:-The technique of micro propagation to produce virus free plants
A:-Meristem culture B:-Protoplast culture
C:-Anther culture D:-Embryo culture
Ans: A
9:-α helix represents ____________ structure of proteins
A:-Primary B:-Secondary
C:-Tertiary D:-Quaternary
Ans: B
10:-Clustal Omega programme is used in
A:-local alignment B:-multiple sequence alignment
C:-global alignment D:-none of the above
Ans: B
11:-Ion responsible for opening and closing of stomata
A:-`"Na^+"`
B:-`"Zn^{2+}"`
C:-`"Mg^{2+}"`
D:-`"K^+"`
Ans: D
12:-First eukaryotic genome sequenced was that of
A:-Haemophilus influezae
B:-Saccharomyces cerevisiae
C:-Caenorhabditis elegans
D:-Neurospora crassa
Ans: B
13:-Attine ant and fungus is an example of which of the following interactions?
A:-Mutualism B:-Neutralism
C:-Amensalism D:-Parasitism
Ans: A
14:-During Photorespiration Glycine is converted to Serine in
A:-peroxisome B:-chloroplast
C:-mitochondria D:-glyoxisome
Ans: C
15:-Which is a data retrieval system of NCBI?
A:-SRS B:-DBGET
C:-SAKURA D:-Entrez
Ans: D
16:-What according to `"C_4"` plants is true?
A:-RuBP carboxylase is absent
B:-RuBP carboxylase is present in mesophyll only
C:-RuBP carboxylase is present in bundle sheath only
D:-RuBP carboxylase is present in both mesophyll and bundle sheath
Ans: C
17:-Which among the following is not true about Cosmid vector?
A:-Does not contain genes for antibiotic resistance
B:-Used to build genomic libraries
C:-Contains DNA sequence from λ phage
D:-It is a hybrid cloning vector
Ans: A
18:-Identify the secondary metabolic compound from the following
A:-amino acid B:-pigment
C:-protein D:-cellulose
Ans: B
19:-Find the correct statement with respect to the production of Golden Rice
A:-to increase shelf life
B:-to fight against malnutrition
C:-to provide herbicide resistance
D:-to make the plant insect resistant
Ans: B
20:-What happens to the P/R ratio in a climax ecosystem?
A:-greater than 1 B:-less than 1
C:-approaches 1 D:-less than or greater than 1
Ans: C
A:-Grassland
B:-Estuary
C:-Desert
D:-Tundra
Ans: B
2:-Catmab is a kind of
A:-isozyme B:-coenzyme
C:-apoenzyme D:-abzyme
Ans: D
3:-Identify the incorrect statement about nitrogenase enzyme
A:-It is an Mo-Fe protein
B:-Catalyses the conversion `"N_2"` of to `"NH_3"`
C:-Insensitive to `"O_2"`
D:-nif gene help in its formation
Ans: C
4:-Separation and blotting of proteins is done in
A:-Western blot
B:-Southern blot
C:-Northern blot
D:-None of the above
Ans: A
5:-Which of the following is not a software used in bioinformatics?
A:-EMBOSS B:-AMPHORA
C:-PROSITE D:-Orange
Ans: C
6:-HGPRT is associated with which of the following?
A:-Purine B:-Pyridine
C:-Pyramidine D:-Pyridoxine
Ans: A
7:-Cycling of which element does not include a gas phase?
A:-Carbon
B:-Nitrogen
C:-Sulphur
D:-Phosphorus
Ans: D
8:-The technique of micro propagation to produce virus free plants
A:-Meristem culture B:-Protoplast culture
C:-Anther culture D:-Embryo culture
Ans: A
9:-α helix represents ____________ structure of proteins
A:-Primary B:-Secondary
C:-Tertiary D:-Quaternary
Ans: B
10:-Clustal Omega programme is used in
A:-local alignment B:-multiple sequence alignment
C:-global alignment D:-none of the above
Ans: B
11:-Ion responsible for opening and closing of stomata
A:-`"Na^+"`
B:-`"Zn^{2+}"`
C:-`"Mg^{2+}"`
D:-`"K^+"`
Ans: D
12:-First eukaryotic genome sequenced was that of
A:-Haemophilus influezae
B:-Saccharomyces cerevisiae
C:-Caenorhabditis elegans
D:-Neurospora crassa
Ans: B
13:-Attine ant and fungus is an example of which of the following interactions?
A:-Mutualism B:-Neutralism
C:-Amensalism D:-Parasitism
Ans: A
14:-During Photorespiration Glycine is converted to Serine in
A:-peroxisome B:-chloroplast
C:-mitochondria D:-glyoxisome
Ans: C
15:-Which is a data retrieval system of NCBI?
A:-SRS B:-DBGET
C:-SAKURA D:-Entrez
Ans: D
16:-What according to `"C_4"` plants is true?
A:-RuBP carboxylase is absent
B:-RuBP carboxylase is present in mesophyll only
C:-RuBP carboxylase is present in bundle sheath only
D:-RuBP carboxylase is present in both mesophyll and bundle sheath
Ans: C
17:-Which among the following is not true about Cosmid vector?
A:-Does not contain genes for antibiotic resistance
B:-Used to build genomic libraries
C:-Contains DNA sequence from λ phage
D:-It is a hybrid cloning vector
Ans: A
18:-Identify the secondary metabolic compound from the following
A:-amino acid B:-pigment
C:-protein D:-cellulose
Ans: B
19:-Find the correct statement with respect to the production of Golden Rice
A:-to increase shelf life
B:-to fight against malnutrition
C:-to provide herbicide resistance
D:-to make the plant insect resistant
Ans: B
20:-What happens to the P/R ratio in a climax ecosystem?
A:-greater than 1 B:-less than 1
C:-approaches 1 D:-less than or greater than 1
Ans: C
21:-What is the morphology of the mace of Myristica fragrans?
A:-Ruminate Endosperm B:-Aril C:-Pericarp D:-Leaves
Ans: B
22:-Name the type of fruit seen in Aegle marmelos.
A:-Carcerule B:-Amphisarca C:-Balausta D:-Samara
Ans: B
23:-The current version of ICN code accepted by International Botanical Congress in 2017
A:-Shenzhen Code B:-Melbourne Code C:-Sydney Code D:-Berlin Code
Ans: A
24:-Guttation in plants occur through
A:-Laticifers B:-Salt glands C:-Hydathodes D:-Stomata
Ans: C
25:-The drug Morphine is obtained from
A:-Cinchona B:-Argemone C:-Nicotiana D:-Papaver
Ans: D
26:-According to APG system of classification, which among the following is the most primitive order
A:-Chloranthales B:-Alismatales C:-Geraniales D:-Rosales
Ans: A
27:-Cremocarp fruit is characteristic to
A:-Aizoaceae B:-Capparidaceae C:-Apiaceae D:-Rubiaceae
Ans: C
28:-Tetradynamous stamen can be seen in
A:-Brassica B:-Scoparia C:-Torrenia D:-Tridax
Ans: A
29:-Setaria italica is an example of
A:-Spice B:-Cereal C:-Condiment D:-Millet
Ans: D
30:-An example of Sorosis
A:-Pineapple B:-Custard apple C:-Fig D:-Strawberry
Ans: A
31:-Morphology of the useful part of sugarbeet when used as sugar yielding plant
A:-Stem B:-Leaf C:-Root D:-Ripe Fruit
Ans: C
32:-Cyathium inflorescence is seen in
A:-Euphorbia B:-Cyathula C:-Hevea D:-Phyllanthus
Ans: A
33:-According to Bentham and Hooker, the series with gamopetalous corolla and inferior ovary is
A:-Calciflorae B:-Inferae C:-Thalamiflorae D:-Heteromerae
Ans: B
34:-The parenchymatous region between leaf trace and main vascular cylinder is known as
A:-Leaf Gap B:-Leaf Stele C:-Stem Pith D:-Leaf Pith
Ans: A
35:-Calcium carbonate cell inclusion found in plants
A:-Cystolith B:-Idioblast C:-Raphides D:-Inulin
Ans: A
36:-The active ingredient of Jeevani Drug developed by JNTBGRI is
A:-Trichosanthes B:-Trichopus C:-Boerhavia D:-Borassus
Ans: B
37:-The branch of science dealing with medicinal drugs obtained from plants
A:-Pharmacology B:-Pharmacognosy C:-Phyto pathology D:-Pathology
Ans: B
38:-Reserpine is obtained from
A:-Rauvolfia serpentina
B:-Ixora coccinea
C:-Acorus calamus
D:-Vinca rosea
Ans: A
39:-Anomalous secondary growth with wedges of secondary phloem is seen in
A:-Aristolochia B:-Bougainvillea C:-Bignonia D:-Piper
Ans: C
40:-Botanical name of Oats
A:-Triticum durum B:-Hordeum vulgare C:-Triticum aestivum D:-Avena sativa
Ans: D
41:-Vitamin B is produced during fermentation by
A:-Acetobacter aceti B:-Clostridium acetobutylicum C:-Streptomyces fradiae D:-Corynebacterium glutamicum
Ans: B
42:-Viroids are
A:-Infectious nucleic acids B:-Infectious proteins C:-Infectious nucleoproteins D:-Infectious lipoproteins
Ans: A
43:-The Rickettsias possess
A:-No cell wall B:-Mucopeptide cell wall C:-Hemicellulose cell wall D:-Polypeptide cell wall
Ans: B
44:-The alga showing dimorphic branching
A:-Cladophora B:-Scytonema C:-Stigonema D:-Batrachospermum
Ans: D
45:-Thin walled non motile spores which resembles the parent algal cell
A:-Aplanospore B:-Hypnospore C:-Autospore D:-Endospore
Ans: C
46:-Carageenin, is obtained from
A:-Laminaria B:-Sargassum C:-Gracilaria D:-Chondrus
Ans: D
47:-Lecanora is an example of
A:-Crustose lichen B:-Fruticose lichen C:-Foliose lichen D:-None of the above
Ans: A
48:-Which lichen has been eaten by travellers in artic region in danger of starvation?
A:-Peltigera B:-Lecidia
C:-Umbillicaria D:-Cladonia
Ans: C
49:-Early blight of Potato is caused by
A:-Alternaria solani B:-Phytopthora infestans C:-Xanthomonas oryzae D:-Fusarium solani
Ans: A
50:-Which mechanism is characterised by the rapid death of cells in the local region surrounding an infection?
A:-Parallelism B:-Hypersensitivity C:-Hypertrophy D:-Hyperplasia
Ans: B
A:-Ruminate Endosperm B:-Aril C:-Pericarp D:-Leaves
Ans: B
22:-Name the type of fruit seen in Aegle marmelos.
A:-Carcerule B:-Amphisarca C:-Balausta D:-Samara
Ans: B
23:-The current version of ICN code accepted by International Botanical Congress in 2017
A:-Shenzhen Code B:-Melbourne Code C:-Sydney Code D:-Berlin Code
Ans: A
24:-Guttation in plants occur through
A:-Laticifers B:-Salt glands C:-Hydathodes D:-Stomata
Ans: C
25:-The drug Morphine is obtained from
A:-Cinchona B:-Argemone C:-Nicotiana D:-Papaver
Ans: D
26:-According to APG system of classification, which among the following is the most primitive order
A:-Chloranthales B:-Alismatales C:-Geraniales D:-Rosales
Ans: A
27:-Cremocarp fruit is characteristic to
A:-Aizoaceae B:-Capparidaceae C:-Apiaceae D:-Rubiaceae
Ans: C
28:-Tetradynamous stamen can be seen in
A:-Brassica B:-Scoparia C:-Torrenia D:-Tridax
Ans: A
29:-Setaria italica is an example of
A:-Spice B:-Cereal C:-Condiment D:-Millet
Ans: D
30:-An example of Sorosis
A:-Pineapple B:-Custard apple C:-Fig D:-Strawberry
Ans: A
31:-Morphology of the useful part of sugarbeet when used as sugar yielding plant
A:-Stem B:-Leaf C:-Root D:-Ripe Fruit
Ans: C
32:-Cyathium inflorescence is seen in
A:-Euphorbia B:-Cyathula C:-Hevea D:-Phyllanthus
Ans: A
33:-According to Bentham and Hooker, the series with gamopetalous corolla and inferior ovary is
A:-Calciflorae B:-Inferae C:-Thalamiflorae D:-Heteromerae
Ans: B
34:-The parenchymatous region between leaf trace and main vascular cylinder is known as
A:-Leaf Gap B:-Leaf Stele C:-Stem Pith D:-Leaf Pith
Ans: A
35:-Calcium carbonate cell inclusion found in plants
A:-Cystolith B:-Idioblast C:-Raphides D:-Inulin
Ans: A
36:-The active ingredient of Jeevani Drug developed by JNTBGRI is
A:-Trichosanthes B:-Trichopus C:-Boerhavia D:-Borassus
Ans: B
37:-The branch of science dealing with medicinal drugs obtained from plants
A:-Pharmacology B:-Pharmacognosy C:-Phyto pathology D:-Pathology
Ans: B
38:-Reserpine is obtained from
A:-Rauvolfia serpentina
B:-Ixora coccinea
C:-Acorus calamus
D:-Vinca rosea
Ans: A
39:-Anomalous secondary growth with wedges of secondary phloem is seen in
A:-Aristolochia B:-Bougainvillea C:-Bignonia D:-Piper
Ans: C
40:-Botanical name of Oats
A:-Triticum durum B:-Hordeum vulgare C:-Triticum aestivum D:-Avena sativa
Ans: D
41:-Vitamin B is produced during fermentation by
A:-Acetobacter aceti B:-Clostridium acetobutylicum C:-Streptomyces fradiae D:-Corynebacterium glutamicum
Ans: B
42:-Viroids are
A:-Infectious nucleic acids B:-Infectious proteins C:-Infectious nucleoproteins D:-Infectious lipoproteins
Ans: A
43:-The Rickettsias possess
A:-No cell wall B:-Mucopeptide cell wall C:-Hemicellulose cell wall D:-Polypeptide cell wall
Ans: B
44:-The alga showing dimorphic branching
A:-Cladophora B:-Scytonema C:-Stigonema D:-Batrachospermum
Ans: D
45:-Thin walled non motile spores which resembles the parent algal cell
A:-Aplanospore B:-Hypnospore C:-Autospore D:-Endospore
Ans: C
46:-Carageenin, is obtained from
A:-Laminaria B:-Sargassum C:-Gracilaria D:-Chondrus
Ans: D
47:-Lecanora is an example of
A:-Crustose lichen B:-Fruticose lichen C:-Foliose lichen D:-None of the above
Ans: A
48:-Which lichen has been eaten by travellers in artic region in danger of starvation?
A:-Peltigera B:-Lecidia
C:-Umbillicaria D:-Cladonia
Ans: C
49:-Early blight of Potato is caused by
A:-Alternaria solani B:-Phytopthora infestans C:-Xanthomonas oryzae D:-Fusarium solani
Ans: A
50:-Which mechanism is characterised by the rapid death of cells in the local region surrounding an infection?
A:-Parallelism B:-Hypersensitivity C:-Hypertrophy D:-Hyperplasia
Ans: B
51:-Phytoalexins are secreted by plants in response to fungal reaction. These compounds are generally
A:-Phenolic compounds B:-Glycoproteins C:-Lipids D:-Proteins
Ans: A
52:-Exclusion of plant disease by legislation is known as
A:-Disease resistance B:-Plant quarantine C:-Biological control of plant D:-Cultural control
Ans: B
53:-The author of the book entitled "The first land plant" is
A:-S.R. Kashyap B:-P.N. Mehra C:-F.O. Bower D:-R.N. Chopra
Ans: C
54:-Which among the following is a fossil bryophyte?
A:-Tortula B:-Haplomitrium C:-Sphaerocarpos D:-Hepaticites
Ans: D
55:-Antiseptic properties are shown by the moss
A:-Funaria B:-Pogonatum C:-Polytrichum D:-Sphagnum
Ans: D
56:-The fern Acrostichum is a
A:-Halophyte B:-Helophyte C:-Epiphyte D:-Psychrophyte
Ans: A
57:-A corm like rhizomorph occurs in
A:-Lycopodium B:-Psilotum C:-Isoetes D:-Rhynia
Ans: C
58:-A family of proteins involved in targeted RNA cleavage in RISC
A:-GAP dehydrogenase B:-Argonaute C:-Actin D:-RNA polymera
Ans: B
59:-The nodes in Gnetum and Gingo are
A:-Tri and Unilacunar B:-Trilacunar C:-Bilacunar D:-Unilacunar
Ans: D
60:-The resin "amber" is obtained from
A:-Callitris B:-Pinites C:-Araucaria D:-Podocarpus
Ans: B
61:-The only enzyme in TCA cycle which is attached to the inner mitochondrial membrane?
A:-Malate dehydrogenase B:-NADPH dehydrogenase C:-Pyruvate dehydrogenase D:-Succinate dehydrogenase
Ans: D
62:-CDK associated with Cyclin B is _________.
A:-CDK 1 B:-CDK 2 C:-CDK 4 D:-CDK 6
Ans: A
63:-Klenow fragment lack
A:-3' `->` 5' exonuclease activity B:-5' `->` 3' exonuclease activity
C:-Polymerisation activity D:-Proof reading activity
Ans: B
64:-Which of the following is considered as an analogue of Allolactose?
A:-Lactulose B:-IPTG C:-Chitobiose D:-Trehalose
Ans: B
65:-Mendel did not observed linkage due to
A:-Mutation B:-Independent assortment C:-Crossing over D:-Synapsis
Ans: B
66:-Which one of the following is a part of synaptonemal complex?
A:-SYCP1 B:-SCYP2 C:-SCYP3 D:-SYCP4
Ans: A
67:-Process of chromosomal movement towards the midway between poles in a prometaphase cells is
A:-Disjunction B:-Congression C:-Cytokinesis D:-Spindle assembly
Ans: B
68:-Structure in the synaptonemal complex, along which the lateral elements of homologous chromosomes align is called
A:-Central element B:-Recombination nodule C:-Synapse D:-Chiasmata
Ans: A
69:-The DNA base composition in most organisms will not be
A:-A + G = T + C B:-A + C = A + G C:-A + T = G + C D:-None of the above
Ans: C
70:-Minisatellite DNAs are
A:-Highly repeated B:-Moderately repeated C:-Non repeated D:-None of the above
Ans: A
71:-Which of the following variety of cotton developed through pureline selection?
A:-Gadag 1 B:-100F C:-K12 D:-Janpuri
Ans: A
72:-Colour of tag used for certified seed in India
A:-Red B:-White C:-Azure Blue D:-Golden brown
Ans: C
73:-Which one is not a feature of vertical resistance?
A:-Polygenic B:-Qualitative Phenotypic Expression C:-Oligogenic D:-Race specific
Ans: A
74:-Female receptivity of a flower in Hybridization measured by
A:-Pollen grain germination on the stigma B:-Production of stigma chemicals to attract pollen grains
C:-Rate of fertilization D:-Length of pollentube
Ans: A
75:-Choose the correct statement regarding Emasculation
A:-Removal of stigma from a flower without male reproductive organs
B:-Removal of stamens from a flower without female reproduction organ
C:-Bagging of a bisexual flower without female reproductive organ
D:-Removal of non-essential whorls of a flower for hybridization
Ans: B
76:-Which of the following inherited metabolic disease causes accumulation of homogenetisic acid in the blood and tissues? A:-Phenylketonuria B:-Porphyria C:-Alkaptonuria D:-Hunter syndrome
Ans: C
77:-The procedure for chromosome mapping was first invented by ________.
A:-Alfred H. Sturtevant B:-T.H. Morgan
C:-Barbara McClintock D:-Hermann Muller
Ans: A
78:-DNA polymerase I was first discovered by ____________.
A:-Kary Mullis B:-Stanley Cohen C:-Jacob and Mannod D:-Arthur Kornberg
Ans: D
79:-Complementary gene interaction can be seen in the case of __________.
A:-Flower color of Lathyrus odoratus B:-Coat color in rabbit C:-Fruit shape in summer squashes D:-Blood group in man
Ans: A
A:-Phenolic compounds B:-Glycoproteins C:-Lipids D:-Proteins
Ans: A
52:-Exclusion of plant disease by legislation is known as
A:-Disease resistance B:-Plant quarantine C:-Biological control of plant D:-Cultural control
Ans: B
53:-The author of the book entitled "The first land plant" is
A:-S.R. Kashyap B:-P.N. Mehra C:-F.O. Bower D:-R.N. Chopra
Ans: C
54:-Which among the following is a fossil bryophyte?
A:-Tortula B:-Haplomitrium C:-Sphaerocarpos D:-Hepaticites
Ans: D
55:-Antiseptic properties are shown by the moss
A:-Funaria B:-Pogonatum C:-Polytrichum D:-Sphagnum
Ans: D
56:-The fern Acrostichum is a
A:-Halophyte B:-Helophyte C:-Epiphyte D:-Psychrophyte
Ans: A
57:-A corm like rhizomorph occurs in
A:-Lycopodium B:-Psilotum C:-Isoetes D:-Rhynia
Ans: C
58:-A family of proteins involved in targeted RNA cleavage in RISC
A:-GAP dehydrogenase B:-Argonaute C:-Actin D:-RNA polymera
Ans: B
59:-The nodes in Gnetum and Gingo are
A:-Tri and Unilacunar B:-Trilacunar C:-Bilacunar D:-Unilacunar
Ans: D
60:-The resin "amber" is obtained from
A:-Callitris B:-Pinites C:-Araucaria D:-Podocarpus
Ans: B
61:-The only enzyme in TCA cycle which is attached to the inner mitochondrial membrane?
A:-Malate dehydrogenase B:-NADPH dehydrogenase C:-Pyruvate dehydrogenase D:-Succinate dehydrogenase
Ans: D
62:-CDK associated with Cyclin B is _________.
A:-CDK 1 B:-CDK 2 C:-CDK 4 D:-CDK 6
Ans: A
63:-Klenow fragment lack
A:-3' `->` 5' exonuclease activity B:-5' `->` 3' exonuclease activity
C:-Polymerisation activity D:-Proof reading activity
Ans: B
64:-Which of the following is considered as an analogue of Allolactose?
A:-Lactulose B:-IPTG C:-Chitobiose D:-Trehalose
Ans: B
65:-Mendel did not observed linkage due to
A:-Mutation B:-Independent assortment C:-Crossing over D:-Synapsis
Ans: B
66:-Which one of the following is a part of synaptonemal complex?
A:-SYCP1 B:-SCYP2 C:-SCYP3 D:-SYCP4
Ans: A
67:-Process of chromosomal movement towards the midway between poles in a prometaphase cells is
A:-Disjunction B:-Congression C:-Cytokinesis D:-Spindle assembly
Ans: B
68:-Structure in the synaptonemal complex, along which the lateral elements of homologous chromosomes align is called
A:-Central element B:-Recombination nodule C:-Synapse D:-Chiasmata
Ans: A
69:-The DNA base composition in most organisms will not be
A:-A + G = T + C B:-A + C = A + G C:-A + T = G + C D:-None of the above
Ans: C
70:-Minisatellite DNAs are
A:-Highly repeated B:-Moderately repeated C:-Non repeated D:-None of the above
Ans: A
71:-Which of the following variety of cotton developed through pureline selection?
A:-Gadag 1 B:-100F C:-K12 D:-Janpuri
Ans: A
72:-Colour of tag used for certified seed in India
A:-Red B:-White C:-Azure Blue D:-Golden brown
Ans: C
73:-Which one is not a feature of vertical resistance?
A:-Polygenic B:-Qualitative Phenotypic Expression C:-Oligogenic D:-Race specific
Ans: A
74:-Female receptivity of a flower in Hybridization measured by
A:-Pollen grain germination on the stigma B:-Production of stigma chemicals to attract pollen grains
C:-Rate of fertilization D:-Length of pollentube
Ans: A
75:-Choose the correct statement regarding Emasculation
A:-Removal of stigma from a flower without male reproductive organs
B:-Removal of stamens from a flower without female reproduction organ
C:-Bagging of a bisexual flower without female reproductive organ
D:-Removal of non-essential whorls of a flower for hybridization
Ans: B
76:-Which of the following inherited metabolic disease causes accumulation of homogenetisic acid in the blood and tissues? A:-Phenylketonuria B:-Porphyria C:-Alkaptonuria D:-Hunter syndrome
Ans: C
77:-The procedure for chromosome mapping was first invented by ________.
A:-Alfred H. Sturtevant B:-T.H. Morgan
C:-Barbara McClintock D:-Hermann Muller
Ans: A
78:-DNA polymerase I was first discovered by ____________.
A:-Kary Mullis B:-Stanley Cohen C:-Jacob and Mannod D:-Arthur Kornberg
Ans: D
79:-Complementary gene interaction can be seen in the case of __________.
A:-Flower color of Lathyrus odoratus B:-Coat color in rabbit C:-Fruit shape in summer squashes D:-Blood group in man
Ans: A