E-PolyLearning

1. The proteins that forms the walls of the microtubules are
a. actin
b. tubulin
c. pectin
d. hydroxyproline
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Answer: (b).tubulin

2. The colour of flower is due to the presence of
a. chlorophyll
b. xanthophylls
c. florigen
d. chromoplast or anthocyanin
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Answer: (d).chromoplast or anthocyanin

3. What are the names of the two genders of haploid yeast cells?
a. A and Alpha
b. M and F
c. Y(a)and Y(b)
d. None of these
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Answer: (a).A and Alpha

4. Neurospora is used as an experimental tool in
a. ecology
b. cytology
c. genetics
d. physiology
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Answer: (c).genetics

5. The volume of O2 liberated in photosynthesis has which of the following ratio to CO2?
a. 1:1
b. 2:1
c. 1:2
d. 3:1
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Answer: (a).1:1

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