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A: Anatropous ovule is resupinate ovule ...

A: Anatropous ovule is resupinate ovule
R: The body of ovule is completely bent with hilum close to micropyalr end

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 ture 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 flase statements then mark

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the assertion and reason about the anatropous ovule, we will follow these steps: ### Step 1: Understand the Assertion The assertion states that "Anatropous ovule is a resupinate ovule." - **Explanation**: An anatropous ovule is indeed a type of ovule that has undergone a 180-degree inversion during its development. This inversion makes the ovule appear to be turned upside down, which is what the term "resupinate" refers to. ### Step 2: Understand the Reason The reason provided is "The body of the ovule is completely bent with hilum close to the micropilar end." - **Explanation**: In an anatropous ovule, the body is indeed bent such that the hilum (the point of attachment) is positioned near the micropyle (the opening through which the pollen tube enters). This characteristic is a defining feature of anatropous ovules. ### Step 3: Evaluate the Truth of the Statements - **Assertion**: True (Anatropous ovule is a resupinate ovule). - **Reason**: True (The body of the ovule is completely bent with hilum close to the micropilar end). ### Step 4: Determine the Relationship Between Assertion and Reason - The reason accurately explains the assertion. The bending of the ovule and the positioning of the hilum near the micropyle are direct consequences of the ovule being anatropous (resupinate). ### Conclusion Both the assertion and the reason are true, and the reason is the correct explanation of the assertion. ### Final Answer Both assertion A and reason R are true, and the reason is the correct explanation of the assertion. ---
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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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