BOTANY- PAGE 7
1. 'Coal balls' with respect to fossils refer to
(a). petrified plant organs
(b). impressions of plant organs
(c). External parts preserved as cast
(d) compression type of plant organs.
Answer: petrified plant organs
2. Consider the following statements on Cycads
I. Plants are woody trees except Zamia pygmaea
II. Leaves primarily compound. arranged in whorls at the apex of the stem.
III. The leaflet have mid-vein with numerous lateral veins.
Which among the above statements is / are not true ?
(a). I and II only
(b). II and III only
(c). II only
(d). III only.
Answer: III only
3. Consider the following statements with respect to Gymnosperms and find out which one is true.
(a). Shrub or tree like habitat is common.
(b). Formation of flower like structures.
(c). Integumented condition of ovules.
(d). Formation of fruits.
Answer: Formation of fruits.
4. The modification found in Acacia melanoxylon is
(a). Phyllode
(b). Cladode
(c) Bipinnate leaf
(d). Simple. leaf.
Answer: Phyllode
5. The stamens in Asteraceae are
(a). Syngenesious
(b). Synandrium
(c). Epipetalous
(d). Translator.
Answer: Syngenesious
6. Polypetalous irregular corolla is seen in
(a). Papilionaceae
(b).Apiaceae
(c). Arecaceae
(d). Anacardiaceae.
Answer: Papilionaceae
7. The entry of pollen tube through the integuments is called as
(a). Porogarny
(b). Mesogamy
(c). Chalazogamy
(d). Syngamy.
Answer: Mesogamy
8. Which of the following consists of a cell wall called frustule ?
(a). Ectocarpus
(b). Nostoc
(c). Pinnularia
(d). Polysiphonia.
Answer: Pinnularia
9. Which of the following statements is correct ?
(a). Plastids of Rhodophyceae have thylakoids stacked in three's.
(b). Plastids of Phaeophyceae have chloroplast endoplasmic reticulum.
(c). Cyanophycean members have plastids in which the thylakoids are free from each other.
(d). Chlorophycean members do not have organized plastids.
Answer: Plastids of Phaeophyceae have chloroplast endoplasmic reticulum.
10. Which of the following is / are the reserved food materials stored by the members red algae ?
(a). Arginine and Aspartic acid
(b). Floridean starch
(c). Laminarin and manitol
(d). Fat and oil.
Answer: Floridean starch
11. Common name for Penicillium is
(a). Blue mould
(b). Black mould
(c). Smut
(d). Rust.
Answer: Blue mould
12. Biopesticides are prepared using :
(a). Filobasidium sp. and Entomothota sp.
(b). Beauveria bassiana and Metarrhizium anisopliae
(c). Candida albicans and Alternaria alternata
(d). All of these.
Answer: Beauveria bassiana and Metarrhizium anisopliae
13. The number of mitochondria increases in the cells of
a. germinating seeds
b. dormant seeds
c. dead seeds
d. dry seeds
Answer: germinating seeds
14. Which of the following is a stress hormone?
a. Abscisic acid
b. Cytokinin
c. Gibberellin
d. Auxin
Answer: Abscisic acid
(a). petrified plant organs
(b). impressions of plant organs
(c). External parts preserved as cast
(d) compression type of plant organs.
Answer: petrified plant organs
2. Consider the following statements on Cycads
I. Plants are woody trees except Zamia pygmaea
II. Leaves primarily compound. arranged in whorls at the apex of the stem.
III. The leaflet have mid-vein with numerous lateral veins.
Which among the above statements is / are not true ?
(a). I and II only
(b). II and III only
(c). II only
(d). III only.
Answer: III only
3. Consider the following statements with respect to Gymnosperms and find out which one is true.
(a). Shrub or tree like habitat is common.
(b). Formation of flower like structures.
(c). Integumented condition of ovules.
(d). Formation of fruits.
Answer: Formation of fruits.
4. The modification found in Acacia melanoxylon is
(a). Phyllode
(b). Cladode
(c) Bipinnate leaf
(d). Simple. leaf.
Answer: Phyllode
5. The stamens in Asteraceae are
(a). Syngenesious
(b). Synandrium
(c). Epipetalous
(d). Translator.
Answer: Syngenesious
6. Polypetalous irregular corolla is seen in
(a). Papilionaceae
(b).Apiaceae
(c). Arecaceae
(d). Anacardiaceae.
Answer: Papilionaceae
7. The entry of pollen tube through the integuments is called as
(a). Porogarny
(b). Mesogamy
(c). Chalazogamy
(d). Syngamy.
Answer: Mesogamy
8. Which of the following consists of a cell wall called frustule ?
(a). Ectocarpus
(b). Nostoc
(c). Pinnularia
(d). Polysiphonia.
Answer: Pinnularia
9. Which of the following statements is correct ?
(a). Plastids of Rhodophyceae have thylakoids stacked in three's.
(b). Plastids of Phaeophyceae have chloroplast endoplasmic reticulum.
(c). Cyanophycean members have plastids in which the thylakoids are free from each other.
(d). Chlorophycean members do not have organized plastids.
Answer: Plastids of Phaeophyceae have chloroplast endoplasmic reticulum.
10. Which of the following is / are the reserved food materials stored by the members red algae ?
(a). Arginine and Aspartic acid
(b). Floridean starch
(c). Laminarin and manitol
(d). Fat and oil.
Answer: Floridean starch
11. Common name for Penicillium is
(a). Blue mould
(b). Black mould
(c). Smut
(d). Rust.
Answer: Blue mould
12. Biopesticides are prepared using :
(a). Filobasidium sp. and Entomothota sp.
(b). Beauveria bassiana and Metarrhizium anisopliae
(c). Candida albicans and Alternaria alternata
(d). All of these.
Answer: Beauveria bassiana and Metarrhizium anisopliae
13. The number of mitochondria increases in the cells of
a. germinating seeds
b. dormant seeds
c. dead seeds
d. dry seeds
Answer: germinating seeds
14. Which of the following is a stress hormone?
a. Abscisic acid
b. Cytokinin
c. Gibberellin
d. Auxin
Answer: Abscisic acid
15. Consider the following statements:
Assertion (A): Certain seeds are subject to anaerobiosis during the first several hours of germination when immersed in water
Reason (R): Plant tissues in atmosphere devoid of 02 convert pyruvic acid to C02 and ethyl alcohol
A. Both (A) and (R) are individually true and (R) is the correct explanation of (A)
(B) Both (A) and (R) are individually true but (R) is not a correct explanation of (A)
(C) (A) is true but (R) is false
(D) (A) is false but (R) is True
Answer: A
16 The baculoviruses that are used as biocontrol agents act against :
1) Nematodes
2) Fungi
3) Insects
4) bacteria
Answer: 3
17 Phylogenetic studies on Phytoplasma based on 16 SrRNA gene sequencing indicate their closest relationship with :
1) Spiroplasma
2) Mycoplasma
3) Acholeplasma
4) Rickettsia
Answer: 3
18 Which of the following diseases is not caused by viroids ?
1) Potato Spindle Tuber
2) Banana Bouncy Top
3) Citrus Exocortis
4) Coconut CadangCadang
Answer: 2
19 Viroids are known by the following characters :
1) Circular , Single Stranded , 250370 nucleotide long RNA
2) Circular , Double Stranded , 460625 nucleotide long RNA
3) Helical , Single Stranded , 246380 nucleotide long RNA
4) Circular , Double Stranded , 246380 nucleotide long RNA
Answer: 1
20 The classification of bacteria based on phylogenetic studies uses 16 SrRNA sequence because
1) It contains about 1500 nucleotides
2) Sequencing is easy
3) isolation of other RNAs is difficult
4) None of These
Answer: 1
21. The movement protein produced during replication of TMV has a molecular weight of :
1) 126 K
2) 183 K
3) 17.6 K
4) 30 K
Answer: 4
22 Which of the following bacteria has an extra plasmamembrane outside the cell wall ?
1) Agrobacterium
2) Clostridium
3) Staphylococcus
4) Bacillus
Answer: 1
23 Systematic acquired Resistance (SAR ) in plants against pathogens can be induced by :
1) Salicylic acid
2) Benzothiazole
3) Isonicotinic Acid
4) All of these
Answer: 4
24 Which of the following are parasitic flowering plants ?
1) Cuscuta
2) Orobanche
3) Striga
4) All of these
Answer: 4
25 The apple scab disease is caused by
1) Xanthomonas citri
2) Venturia inaequalis
3) Colletotrichum falcatum
4) Curvularia prasadii
Answer: 2
Assertion (A): Certain seeds are subject to anaerobiosis during the first several hours of germination when immersed in water
Reason (R): Plant tissues in atmosphere devoid of 02 convert pyruvic acid to C02 and ethyl alcohol
A. Both (A) and (R) are individually true and (R) is the correct explanation of (A)
(B) Both (A) and (R) are individually true but (R) is not a correct explanation of (A)
(C) (A) is true but (R) is false
(D) (A) is false but (R) is True
Answer: A
16 The baculoviruses that are used as biocontrol agents act against :
1) Nematodes
2) Fungi
3) Insects
4) bacteria
Answer: 3
17 Phylogenetic studies on Phytoplasma based on 16 SrRNA gene sequencing indicate their closest relationship with :
1) Spiroplasma
2) Mycoplasma
3) Acholeplasma
4) Rickettsia
Answer: 3
18 Which of the following diseases is not caused by viroids ?
1) Potato Spindle Tuber
2) Banana Bouncy Top
3) Citrus Exocortis
4) Coconut CadangCadang
Answer: 2
19 Viroids are known by the following characters :
1) Circular , Single Stranded , 250370 nucleotide long RNA
2) Circular , Double Stranded , 460625 nucleotide long RNA
3) Helical , Single Stranded , 246380 nucleotide long RNA
4) Circular , Double Stranded , 246380 nucleotide long RNA
Answer: 1
20 The classification of bacteria based on phylogenetic studies uses 16 SrRNA sequence because
1) It contains about 1500 nucleotides
2) Sequencing is easy
3) isolation of other RNAs is difficult
4) None of These
Answer: 1
21. The movement protein produced during replication of TMV has a molecular weight of :
1) 126 K
2) 183 K
3) 17.6 K
4) 30 K
Answer: 4
22 Which of the following bacteria has an extra plasmamembrane outside the cell wall ?
1) Agrobacterium
2) Clostridium
3) Staphylococcus
4) Bacillus
Answer: 1
23 Systematic acquired Resistance (SAR ) in plants against pathogens can be induced by :
1) Salicylic acid
2) Benzothiazole
3) Isonicotinic Acid
4) All of these
Answer: 4
24 Which of the following are parasitic flowering plants ?
1) Cuscuta
2) Orobanche
3) Striga
4) All of these
Answer: 4
25 The apple scab disease is caused by
1) Xanthomonas citri
2) Venturia inaequalis
3) Colletotrichum falcatum
4) Curvularia prasadii
Answer: 2