From the statements given below :-
choose option that is true for a tropical female gametophyte of a flowering plant:
i. It is -8 nucleate and 7-celled at maturity.
ii. In majority of the angiosperms , its monosporic.
iii. It is situated inside the integument but outside the nucellus.
IV. It had an egg apparatus situated at the micropyle end .
V. It develops by mitosis of the 4 cells of megaspore tetrad.

Options

A. i, iii and iv
B. ii, iii and iv
C. i, ii and iv
D. i , iii and iv

Answer

To solve the question regarding the tropical female gametophyte of a flowering plant, we will analyze each statement provided and determine which ones are true.

### Step-by-Step Solution:

1. **Statement Analysis**:
- **Statement i**: "It is -8 nucleate and 7-celled at maturity."
- **Analysis**: This statement is **true**. The mature female gametophyte (embryo sac) in flowering plants is indeed 7-celled and contains 8 nuclei.

2. **Statement ii**: "In majority of the angiosperms, it is monosporic."
- **Analysis**: This statement is **true**. Most angiosperms develop a female gametophyte from a single megaspore, making it monosporic.

3. **Statement iii**: "It is situated inside the integument but outside the nucellus."
- **Analysis**: This statement is **false**. The female gametophyte is located inside the nucellus, which is surrounded by the integument.

4. **Statement iv**: "It had an egg apparatus situated at the micropyle end."
- **Analysis**: This statement is **true**. The egg apparatus, which consists of the egg cell and synergids, is located at the micropyle end of the embryo sac.

5. **Statement v**: "It develops by mitosis of the 4 cells of megaspore tetrad."
- **Analysis**: This statement is **false**. The development of the female gametophyte occurs through the process of meiosis, not mitosis.

### Conclusion:
From the analysis:
- True statements: i, ii, iv
- False statements: iii, v

Thus, the correct option that includes the true statements about the tropical female gametophyte of flowering plants is option 3 (which includes statements i, ii, and iv).

### Final Answer:
The true statements for a tropical female gametophyte of a flowering plant are:
- i. It is -8 nucleate and 7-celled at maturity.
- ii. In majority of the angiosperms, it is monosporic.
- iv. It had an egg apparatus situated at the micropyle end.