Question

During double fertilization two sperm cells fuse (one each) with

a. An egg cell
b. The two polar nuclei
c. A pollen grain
d. Both A and B
e. Both A and C

Answer 1

During double fertilization in angiosperms, two sperm cells fuse with both an egg cell and the two polar nuclei. One sperm fertilizes the egg cell to form a diploid zygote, while the other sperm fertilizes the two polar nuclei to form a triploid endosperm.

Step-by-step explanation:

During double fertilization in angiosperms, two sperm cells fuse with both an egg cell and the two polar nuclei. One sperm fertilizes the egg cell to form a diploid zygote, while the other sperm fertilizes the two polar nuclei to form a triploid endosperm. This process is known as double fertilization and is unique to angiosperms.