A. one chromosomes from the male joins another from the female B. one gene from the male combines with the another from the female C. the male nucleus fuses with the female nucleus D. one set of chromosome combines with another set from the female
Correct Answer: C
Explanation
During fertilisation, one sperm enters the ovum triggering electrical and chemical changes in the membrane of the ovum that prevent the entrance of other sperms. The head of the haploid sperm then swells to form the male pronucleus and fuses with the female pronucleus, forming the diploid nucleus zygote
