| 1. | Pollination is the process by which plants transfer male sex cells from one plant to another. How does the nucleus of the male cell reach the female cell? |
| a. | It travels on the legs of bees and sticks to the egg cell |
| b. | The pollen grain grows a pollen tube and the nucleus travels down the pollen tube to reach the egg cell |
| c. | It blows in the wind |
| d. | None of the above |
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Answer: (b).The pollen grain grows a pollen tube and the nucleus travels down the pollen tube to reach the egg cell
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| 2. | When a gardener takes a cutting from a plant, indicating that he has made a |
| a. | clone |
| b. | mutation |
| c. | new species |
| d. | new variety |
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Answer: (a).clone
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| 3. | Single stranded circular RNA encapsidated with a larger RNA in a plant virus is |
| a. | a virion |
| b. | a viroid |
| c. | a virusoid |
| d. | none of these |
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Answer: (c).a virusoid
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| 4. | Microarray analysis involves biological assays based on |
| a. | gels |
| b. | filters |
| c. | purification columns |
| d. | small glass chips |
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Answer: (d).small glass chips
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| 5. | Which of the following is correct about micro biosensors? |
| a. | Implantation in human body and are suitable for in-vivo measurements |
| b. | Can be integrated on one chip and are useful for measuring various substrates in a small amount of sample solution simultaneously |
| c. | It is possible to develop disposable transducers for biosensors through mass production |
| d. | All of these |
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Answer: (d).All of these
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