Question

In angiosperms, embryosac is developed from which of the following?

• A. Megaspore mother cell
• B. Secondary nucleus
• C. Endothecium
• D. Microspore mother cell

Answer 1

The correct option is A Megaspore mother cell

Within the ovule, one diploid megaspore mother cell divides by meiosis to produce four haploid megaspores. Only one of the megaspores survives, and the other three degenerate. The surviving megaspore undergoes mitotic division to produce an embryo sac with eight nuclei. Thus the correct answer is option A.