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Which of the following statements is/are...

Which of the following statements is/are correct ?
(i) Endothecium lies below epidermis
(ii) Fusion of egg with male gamete is called apogamy
(iii) Synergids are haploid.
(iv) The point at which funicle touches the ovule is raphe.

A

a and d

B

a and b

C

a and c

D

only a

Text Solution

AI Generated Solution

The correct Answer is:
To determine which statements are correct, let's analyze each statement one by one: ### Step 1: Analyze Statement (i) **Statement:** Endothecium lies below epidermis. **Analysis:** The endothecium is a layer of cells in the anther wall of flowering plants. It is indeed located below the epidermis. **Conclusion:** This statement is **correct**. ### Step 2: Analyze Statement (ii) **Statement:** Fusion of egg with male gamete is called apogamy. **Analysis:** The fusion of the egg cell with the male gamete is called **syngamy**, not apogamy. Apogamy refers to the formation of an embryo without fertilization. **Conclusion:** This statement is **incorrect**. ### Step 3: Analyze Statement (iii) **Statement:** Synergids are haploid. **Analysis:** Synergids are indeed haploid cells that are part of the female gametophyte (embryo sac) in flowering plants. They are involved in guiding the pollen tube to the egg cell. **Conclusion:** This statement is **correct**. ### Step 4: Analyze Statement (iv) **Statement:** The point at which funicle touches the ovule is raphe. **Analysis:** The funicle is the stalk that attaches the ovule to the ovary wall. The point where the funicle attaches to the ovule is called the **hilum**, not the raphe. The raphe is a ridge that runs along the seed. **Conclusion:** This statement is **incorrect**. ### Final Conclusion: The correct statements are (i) and (iii). ### Summary of Correct Statements: - (i) Endothecium lies below epidermis - **Correct** - (ii) Fusion of egg with male gamete is called apogamy - **Incorrect** - (iii) Synergids are haploid - **Correct** - (iv) The point at which funicle touches the ovule is raphe - **Incorrect** ### Final Answer: The correct statements are (i) and (iii). ---
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TRUEMEN BIOLOGY ENGLISH-SEXUAL REPRODUCTION IN FLOWERING PLANTS-MULTIPLE CHOICE QUESTIONS
  1. The number of cells in the Polygonum type of embryo sac which degener...

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  2. In 82% of angiosperm families, ovule is

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  3. Which of the following statements is/are correct ? (i) Endothecium ...

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  4. The arrangement of the nuclei in a normal embryo sac in the dicot plan...

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  5. Which one of the following is surrounded by a callose wall

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  6. Male gametes in angiosperms are formed by the division of

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  7. Increased asthmatic attacks in certain seasons are related to

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  8. Pollination occurs when a pollen grain

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  9. Anemophily is pollination through

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  10. Emasculation is

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  11. When anthers and stigma mature at the same time it is called

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  12. Self pollination (autogamy) is obligatory in closed bisexual flowers ...

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  13. Wind pollinated plants differ from insects pollinated plants in havin...

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  14. The process whereby a perfect flower is pollinated by its pollen is ...

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  15. The term used when anthers and stigmas of intersexual or perfect

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  16. Maturation of gynoecium before anthers of the same flower of

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  17. Cross pollination in crop plant is known as

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  18. Hydrophily occurs in

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  19. Lever mechanism or turn pipe machanism of pollination is found in

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  20. The type of pollination found in Viola is

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