Question

An angiosperm was identified with its endosperm of $6n$. Assuming that this is a self-pollinating species. Which one of the following is the correct ploidy of the parent?

• A. $3n$
• B. $4n$
• C. $6n$
• D. $8n$

Answer 1

The correct option is B $4n$

Endosperm is usually triploid in nature.

Here, triploidy = 6n, Therefore, haploidy = 2n.

The definitive nucleus is diploid (2n) in the center of the embryosac. Hence, the correct ploidy of the parent is 2 x 2n = 4n.

Thus, the correct answer is '4n.'