Prof. Dr. Sohan Raj Tater
Living organisms perpetuate their species from one generation to another through reproduction. It is precise duplication and transmission of characteristics from parents to offsprings. In the lower organisms, reproduction is often a simple matter of division of cells. In human and higher organisms, sex comes into operation, reproduction requires two parents; a male and a female, redroductive cells, called gametes, which are produced in the reproductive organs of both sexes are special variant of cell. The female gamete is called ovum or egg and the male gamete is called sperm. Meiosis is a special process of cell-division and takes place in reproductive organs. It is a sequence of two divisions. In the first division, each daughter cell receives only one pair of homologous chromosomes. Thus, in meiosis, daughter cells differ in their sets of genetic information both from each other and from the original cell.[87]
Human reproduction is common with that of most animals[88] is accomplished sexuality by the union of specialized gametes-ovums or eggs produced by the female and sperm produced by the male.[89] A man and woman combine in cohabitation in a cunnus (jonie) and there they deposit homours (snehaṁ). There in, is born the soul of different man.[90] That is to say "all the parts of the complicated reproductive system in both sexes, as well as various physiologic and psychologic phenomena associated with sex, have just one purpose to insule the successful union of the egg and sperm, and the subsequent development of the fertilized egg into a new individual."
Doctoral Thesis, JVBU