Question

An event unique to angiosperms involves syngamy and triple fusion. The total number of haploid nuclei involved in double fertilization is?

• A. Two
• B. Three
• C. Four
• D. Five

Answer 1

The correct option is D Five

Syngamy and triple fusion is called as double fertilisation. In this event two haploid male gamete involved. One of male gamete fuse with egg cell results into syngamy and other male gamete fuse with diploid secondary nucleus. The fusion is known as triple fusion.

In this event two haploid male nuclei and 3 haploid nuclei from the embryo sac are involved.

Hence, correct answer is Five.