In oogamy. Fertilization involves

Options

A. a small non-motile female gamete and a large motile male gamete
B. a large non-motile female gamete and a small motile male gamate
C. a large non-motile female gamete and a small non-motile male gamate
D. a large motile female gamete and a small non-motile gamete

Answer

B

Explanation

In oogamouis type of sexual reproduction, the female gamete ( ovum/egg) is big. Passive while male gametes (spermatozoids) are smaller, active and motile.