#Question id: 2874
#Unit 2. Cellular Organization
Match one item from numbered group A with a lettered item from group B.
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GROUP I |
GROUP II |
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1. Yeast artificial chromosomes |
a. They are more stable |
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2. Bacterial artificial chromosome |
b. It is very hard to construct |
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c. It is not so hard to construct |
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d. They are unstable |
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e. are used to clone the DNA inserts up to 300kb |
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f. are used for cloning very large (1000-2000kb) DNA segments |
#Question id: 2727
#Unit 2. Cellular Organization
What marks the difference between the solenoid and the zig-zag models of 30 nm fibres?
#Question id: 29014
#Unit 7. System Physiology – Animal
25-hydroxycholecalciferol is converted to the more active metabolite 1,25-dihydroxycholecalciferol in which of the following cell ?
#Question id: 5456
#Unit 8. Inheritance Biology
Traits which exhibit continuous phenotypic variation are typically determined by this inheritance form _______.
#Question id: 5658
#Unit 5. Developmental Biology
Following events occur during fertilization in mammals.
A. sperm penetrates cumulus layer
B. sperm nucleus delivered into cytoplasm
C. sperm plasma membrane fuses with egg plasma membrane
D. calcium waves
E. enzymes released from acrosome on sperm head enable sperm to penetrate zona pellucida
F. transit through the cumulus or binding to zona pellucida elicits acrosomal reaction in sperm
G. egg completes meiosis and development is initiated
which of the following sequence is correct?