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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

(i) and (iv)

B

(i) and (ii)

C

(i) and (iii)

D

(ii) and (iii)

Text Solution

AI Generated Solution

The correct Answer is:
To determine which of the statements are correct, let's analyze each statement one by one: 1. **Statement (i): Endothecium lies below epidermis.** - The endothecium is a layer of cells found in the anther of the flower. The structure of the anther consists of four layers: the outermost layer is the epidermis, followed by the endothecium, then the middle layer, and finally the tapetum. Therefore, this statement is **correct**. 2. **Statement (ii): Fusion of egg with male gamete is called apogamy.** - The fusion of the egg cell with the male gamete (sperm) is known as **syngamy**, not apogamy. Apogamy refers to a type of reproduction where the embryo develops without fertilization. Therefore, this statement is **incorrect**. 3. **Statement (iii): Synergids are haploid.** - Synergids are indeed haploid cells that are present in the embryo sac of flowering plants. They play a role in guiding the pollen tube to the egg cell. Therefore, this statement is **correct**. 4. **Statement (iv): The point at which funicle touches the ovule is raphe.** - The raphe is actually the structure that connects the ovule to the funicle, but it is not the point where the funicle touches the ovule. The point of attachment is referred to as the chalaza. Therefore, this statement is **incorrect**. **Summary of Correct Statements:** - Statement (i) is correct. - Statement (ii) is incorrect. - Statement (iii) is correct. - Statement (iv) is incorrect. Thus, the correct statements are (i) and (iii). ### Final Answer: The correct statements are (i) and (iii).

To determine which of the statements are correct, let's analyze each statement one by one: 1. **Statement (i): Endothecium lies below epidermis.** - The endothecium is a layer of cells found in the anther of the flower. The structure of the anther consists of four layers: the outermost layer is the epidermis, followed by the endothecium, then the middle layer, and finally the tapetum. Therefore, this statement is **correct**. 2. **Statement (ii): Fusion of egg with male gamete is called apogamy.** - The fusion of the egg cell with the male gamete (sperm) is known as **syngamy**, not apogamy. Apogamy refers to a type of reproduction where the embryo develops without fertilization. Therefore, this statement is **incorrect**. ...
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NCERT FINGERTIPS ENGLISH-SEXUAL REPRODUCTION IN FLOWERING PLANTS-Sexual Reproduction In Flowering Plants
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  2. Fusion of one of the male gametes with egg nucleus is referred to as

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

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  4. The total number of nuclei involved in double fertilisation in angiosp...

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  5. Which one of the following events takes place after double fertilisati...

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  6. Triple fusion in Capsella bursa pastoris is fusion of male gamete with

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  7. Double fertilisation was first discovered in 1898 byin Fritillaria and...

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  8. Study the following statements and select the correct option. (i) Ta...

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  9. Milk of tender coconut represents ------ and the surrounding white coc...

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  10. Identify A in the given diagram.

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  11. Morgan hybridised yellow-bodied, white-eyed females to brown-bodied re...

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  12. If an endosperm cell of an angiosperm contains 24 chromosomes, the num...

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  13. The cell of endosperm have 24 chromosomes. What will be the number of ...

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  14. In angiosperms, normally after fertilisation

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  15. The true embryo develops as a result of fusion of

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  16. Father of India embryology is

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  17. Identify the different parts of a typical dicot embryo labelled as A,B...

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  18. The portion of embryonal axis between plumule (future shoot) and cotyl...

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  19. In the following diagram label A and B

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  20. which of the following statements is/are incorrect?

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