Question

Number of nuclei taking part in double fertilization is

• A. 2
• B. 3
• C. 4
• D. 5

Answer 1

The correct option is D 5

Five nuclei are involved in double fertilization. Double fertilization is the process involving syngamy and triple fusion.

Syngamy is the fusion of one male gamete( haploid) with a haploid female gamete forming a diploid zygote. Triple fusion is the fusion of a diploid secondary nucleus (2 polar nuclei) and male gamete.

Hence it involves five nuclei - Two of male gametes; 3 nuclei of the egg cell and 2 polar nuclei.

So the correct option is D.