Question

In embryo sac double fertilization means

• A. Formation of double zygote
• B. Fusion between egg and male gamete
• C. Fusion between secondary nucleus and male gamete
• D. Both B and C

Answer 1

The correct option is D Both B and C

Double fertilization is a complex mechanism found in the flowering plants. This process involves the joining of female gametophyte with two male gametes. In this, triploid endosperm and a diploid zygote is formed. In this case, syngamy between male and female gametes produce the embryo. At the same time, the secondary nuclei which is diploid in nature will fuse with another male gamete and forms the endosperm. It was first discovered by Nawaschin.

Thus, the correct answer is option B and D.