Given below is a diagram representing the structure of an ovum surrounded by a few sperm cells. Study the diagram and answer the questions that follows.

(a) Where does fertilisation, normally take place?

(b) Mention the chromosome number in egg and zygote in humans.

(c) What is the main function of corona radiata?

(a) The process of fertilisation takes place in the fallopian tube of females.

(b) The chromosome number in human egg (haploid) is 23 and zygote (diploid) is 46.

(c) The main function of corona radiata is to supply vital proteins to the ovum.