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A: The gerative cell comes to lie freely...

A: The gerative cell comes to lie freely in the cytoplasm of the tube cell
R: Cellulosic wall around generative cell is dissoved

A

if both assetion A reason are ture and the reason is the correct explanation of the assertion then mark

B

if both assertion & reason are true and the reason is not the correct explanation of the assertin then mark

C

if assertion is true statement but reason is false then mark

D

if both assertion and reason are false statements then mark

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding the Assertion:** - The assertion states that the generative cell comes to lie freely in the cytoplasm of the tube cell. - This is true because during the development of the pollen grain, the generative cell is formed within the tube cell (also known as the vegetative cell) and eventually comes to reside freely in its cytoplasm. 2. **Understanding the Reason:** - The reason provided is that the cellulosic wall around the generative cell is dissolved. - This statement is false. If the cellulosic wall of the generative cell were to dissolve, it would lead to a multinucleate condition, which is not typical or possible in this context. 3. **Conclusion:** - Since the assertion is true and the reason is false, we conclude that the correct answer is that the assertion is true, but the reason is false. 4. **Final Answer:** - Assertion (A) is true, and Reason (R) is false. ---
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AAKASH INSTITUTE ENGLISH-SEXUAL REPRODUCTION IN FLOWERING PLANTS -Assignment (SECTION D)
  1. A: Each cell fo the sporogenous tissue is capable of giving rise to a ...

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  2. A: In sporoderm pecitocellulosic layer is surrounded by sproropolleni...

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  3. A: The gerative cell comes to lie freely in the cytoplasm of the tube ...

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  4. A: Restitutional nucleus can be observed in endothecium cells R: End...

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  5. A: chalazal vacuole is present in the help cell of embryo sac R: Pol...

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  6. A: Formatin of mature male gametophyte requires one meiotic and one mi...

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  7. A: filiform apparauts guides the pollen tube into the synergids R: I...

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  8. A: Geitonogamy helps in maintaining homozygosity and superiority of t...

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  9. A: Initial growth of pollen tube takes places on expenditure of food p...

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  10. A: Eight cells of octant stage in dicot embryogeny are made by 2 verti...

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  11. A: Triple fusion is associated with the sexual reproduction in all spe...

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  12. A: Anatropous ovule is resupinate ovule R: The body of ovule is comp...

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  13. A: More than one pollen tubes can enter an embryo sac R: Double fert...

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  14. A: Hybrid seed have to be produced every year because seeds collected ...

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  15. A: Growth of male gametophyle is completed over the female reprofuctiv...

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  16. A: certain proteins of pollen grain identifies the compatible stigma ...

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  17. A: Tetrapid gametophyte can be produced form tetraploid sporophyte by...

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  18. A: continued self pollination checks inbreeding depression R: pollen...

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  19. A: Complete radicle is not produced by hypobasal tier of octant embryo...

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  20. A: Apomictic embryo is asexual mode of reproduction R: it prevents t...

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