Question

In angiosperms, the formation of two male gametes from a pollen grain involves _________ divisions.

• A. One meiotic and one mitotic
• B. Two meiotic and two mitotic
• C. Only two mitotic
• D. Only two meiotic

Answer 1

Answer: (B)

Two meiotic and two mitotic

In angiosperms, the diploid pollen mother cell undergoes meiosis I followed by meiosis II to form a tetrad having 4 haploid microspores. This tetrad separates to form forms 4 haploid pollen grains. Each pollen undergoes mitosis to give rise to mature pollen with 2 male gametes. Thus the correct answer is option B.