Sexual Reproduction In Flowering Plant Question 197

Question: If an angiospermic male plant is diploid and female plant tetraploid, the ploidy level of endosperm will be:

Options:

A) Haploid

B) Triploid

C) Tetraploid

D) Pentaploid

Show Answer

Answer:

Correct Answer: D

Solution:

[d] The male gamete will be haploid (n).

2 polar nuclei will be diploid (2n).

Endosperm formed fusion of male gamete with two polar nuclei will be pentaploid.

Male gamete + 2 polar nuclei $ n,(2n)+(2n) $ $ \to $ Endosperm (5n)