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