Acrosomal reaction of the sperm occurs due to

Options

A. capacitation
B. release of lysin
C. influx of `Na^(+)`
D. release of fertilisin

Answer

D

Explanation

(d) Ovum secretes a chemical substance, called fertilisin which has number of spermophilic sites on its surface where the sperm of species specifuc type can be bound by their antifertilisin site. This fertilisin-antifertilisin reaction triggers acrosome reaction. the main aim of this reaction is to thin out the number of sperms to reduce the chances of polyspermy.