Poliination by bats is termd as
A. Ornithophilly
B. Entomophilly
C. Hydrophilly
D. Cheiropterophilly
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The phenomenon in which occurrence of one crossing over in chromosome interfers with the second crossing over in neighbouring segments is
A. Co-incidence
B. Inference
C. Interference
D. Inheritance
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The example of Inducible Operon is
A. Lac operon
B. Trp operon
C. Both of these
D. None of the above
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The ratio expected from complementary gene action is
A. 13 : 3
B. 9 : 7
C. 15 : 1
D. 12 : 3 : 1
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The gametophytic system of self-incompatibility was first reported in
A. Nicotiana sanderae
B. Secale cerele
C. Crepis foetida
D. Brassica oleracea
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Transduction was discovered in virus by
A. Zinder & Lederberg
B. Wallace & Jacob
C. Lederberg and Tatum
D. Herelle & Twort
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The degenerative plant parts which are not useful for any processes are
A. Unwanted structure
B. Unessential structure
C. Vestigial structure
D. Unnecessary structure
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Acclimalisation means
A. Removal of female parts of a flower
B. A method of breeding
C. Both A and B
D. A process of adjustment by crop plants to environment
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The inherent capacity of an organism to increase in numbers under ideal condition is known as
A. Growth rate
B. Biotic potential
C. Reproductive potential
D. Population explosion
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For Disease resistance purpose which of the following breeding method is conducted?
A. Bulk method
B. Backcross breeding
C. Transgenic breeding
D. Both B and C
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Often cros pollinated crop is
A. Maize
B. Rice
C. Wheat
D. Barley
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The product of cross between cytoplasmic male sterile × cytoplasmic male fertile as
A. Sterile F1
B. Fertile F1
C. Fertile, sterile in 1 : 1 ratio
D. None of the above
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Translocation of organic material is best explained by
A. Imbibition theory
B. Mass flow hypothesis
C. Transpiration pull theory
D. None of the above
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What would be the complementary sequence to GATAACA?
A. TGTTATC
B. CTATTGT
C. AGCGGTG
D. TGTTATU
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Seed multiplication ratio of Potato and groundnut are respectively
A. 1 : 2 and 1 : 4
B. 1 : 4 and 1 : 6
C. 1 : 4 and 1 : 8
D. 1 : 8 and 1 : 10
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Ribosomes are synthesized in
A. Nucleolus
B. Cytosol
C. Golgi bodies
D. Mitochondria
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Nucleolus plays important role in production of
A. rRNA
B. tRNA
C. mRNA
D. All of these
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Inhibitors to translation (protein synthesis) are
A. Streptomycin
B. Uromycin and Neomycin
C. Chloramphenicol and Erythromycin
D. All of the above
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Removal of male parents from the female parent in the maize is known as
A. Emasculation
B. Tasseling
C. Detasseling
D. Fertilization
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The hybrid developed from the fusion of cytoplast of one parent and protoplast of other plant contains nucleus from one parent and cytoplasm from both the parents is called as
A. Embryo
B. Cybrid
C. Zygote
D. Hybrid
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