Which of the following statements is not true about the life cycle of flowering plants ?

Options

A. Sporophyte is diploid
B. Sporophyte produces heterospores
C. Megagametophyte is the seed
D. Megagametophyte is retained within the body of the sporophyte parent generation

Explanation

To determine which statement is not true about the life cycle of flowering plants, let's analyze each option step by step:

### Step 1: Analyze Option A
**Statement:** Sporophyte is diploid.
**Explanation:** In flowering plants (angiosperms), the sporophyte generation is indeed diploid (2n). It develops from the zygote, which is formed by the fusion of haploid gametes (egg and sperm). Therefore, this statement is true.

### Step 2: Analyze Option B
**Statement:** Sporophyte produces heterospores.
**Explanation:** In angiosperms, the sporophyte produces two types of spores: microspores (male) and megaspores (female). This condition is known as heterospory. Thus, this statement is also true.

### Step 3: Analyze Option C
**Statement:** Megagametophyte is the seed.
**Explanation:** The megagametophyte (female gametophyte) is not the seed itself. Instead, it is the structure that contains the female gamete (egg cell) and is found within the ovule. The seed develops from the fertilized ovule, which includes the megagametophyte but is not the same as the megagametophyte. Therefore, this statement is false.

### Step 4: Analyze Option D
**Statement:** Megagametophyte is retained within the body of the sporophyte parent generation.
**Explanation:** This statement is true. The megagametophyte is retained within the ovule, which is part of the sporophyte generation.

### Conclusion
Based on the analysis, the statement that is not true about the life cycle of flowering plants is **Option C: Megagametophyte is the seed.**

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