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In a male gametophyte, the chromosomal n...

In a male gametophyte, the chromosomal number of generative nucleus is (A) and tube nucleus is (B).

A

(A) - (n) (B) - (2n)

B

(A) - (2n) (B) - (n)

C

(A) - (2n) (B) - (2n)

D

(A) - (n) (B) - (n)

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SARAS PUBLICATION-GOVT. MODEL SOLVED QUESTION PAPER 2019-20 (4)-EXERCISE
  1. In a male gametophyte, the chromosomal number of generative nucleus is...

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  2. Which one of the following is incorrect regarding chromosomal behaviou...

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  3. Which one of the following is a secondary metabolite?

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  4. Which one of the following is a correct set?

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  5. Assertion (A): Hypolimnetic layer of water is always cold. Reason(R): ...

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  6. Which plant pods explodes with a loud noise like cracker?

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  7. Which one of the following food chain refers inverted pyramid?

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  8. Which one of the following is a live fence of fodder?

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  9. Which method of artificial vegetative reproduction is good in plants? ...

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  10. Differentiate tetrasomy from tetraploidy.

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  11. Define electroporation method of gene transfer.

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  12. By using gene manipulation research we produce varieties of organsms. ...

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  13. In different food chains of different ecosystem the placement of man i...

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  14. Grafting is a method of production of hybrid plants but not the method...

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  15. How does Rhytidome protect the plant against forest fire?

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  16. In animals, loss of energy occures due to evoporation of heat. How?

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  17. Write the direct and indirect effects of ozone depletion on man.

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  18. Explain the pattern of inheritance of a dominant gene suppressed by an...

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  19. Explain the role of Agrobacterium as a vector in gene transfer.

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  20. Compare mass selection with pure line selection with the help of a sch...

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