Question

During reproduction, the chromosome number (2n) reduces to half (n)

in the gametes and again the original number (2n) is restored in the

offspring, What are the processes through which these events take place?

Answer 1

Mieosis is a process of nucelar division in a living cell by which the number of chromosomes is reduced to half the original number. After mitotic differentiation, first and second meiotic division occurs and the gametes will have haploid chormosomes. The diagrammatic representation of gametogeneis given in NCERT book will help u understand better

Answer 2

Meiosis is the process of nuclear division in a living cell by which the number of chromosomes is reduced to half the original number. After mitotic differentiation, first and second meiotic division occurs and the gametes will have haploid.