In angiosperms microspores are

Options

A. Well developed male gametophyte
B. Partially developed male gametophyte
C. Partially developed male sporophyte
D. Well developed sporophyte

Answer

**Step-by-Step Solution:**

1. **Understanding Microspores**: In angiosperms, microspores are the spores that develop into male gametophytes. They are crucial for the process of reproduction in flowering plants.

2. **Definition of Male Gametophyte**: The microspores develop into pollen grains, which are the male gametophytes. This means that microspores are the precursors to the male gametes.

3. **Ploidy Level**: Microspores are haploid (n), meaning they contain one set of chromosomes. This is important because, during fertilization, they will combine with the female gamete to form a diploid (2n) zygote.

4. **Comparison with Megaspores**: Just as microspores are associated with male gametes, megaspores are associated with female gametes (embryo sac). This highlights the distinction between male and female reproductive structures in angiosperms.

5. **Conclusion on Options**: Based on the definitions and characteristics of microspores, the correct answer to the question is that in angiosperms, microspores are known as well-developed male gametes.

**Final Answer**: In angiosperms, microspores are well-developed male gametes.

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