Question

Sexual reproduction involves formation of the male and female gametes by
A. Same individual
B. Different individuals of the opposite sex
C. Different individuals of the same sex
D. Either A or B

Answer 1

Correct Answer - D
`{:("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):}`