Sexual reproduction involves formation of the male and female gametes by

Options

A. Same individual
B. Different individuals of the opposite sex
C. Different individuals of the same sex
D. Either A or B

Answer

D

Explanation

`{:("Name of Organism","Chromosome number in melocyte"(2n),"Chromosome number in gamete"(n)),("Human beings",46,23),("House fly",12,24),("Rat",42,21),("Dog",78,39),("Cat",38,19),("Fruit fly",8,16),("Ophioglossum(a fern)",1260,630),("Apple",34,68),("Rice",24,12),("Maize",20,10):}`