SEX DETERMINATION

 SEX DETERMINATION: Sex determination deals with the occurrence of sex in the next generation, or it can also be spoken as- occurrence of  sexes of organisms. Earlier it was believed that women plays a great role in determining the sexuality of an organism but later on scientifically it has been found that it is not the female but Male who are the determiner of sex for the next generation. 

Higher Organisms  are 2n, means they are diploid. We have 23 pairs of chromosomes ie. 46 number of chromosomes. Out of 23 pairs or 46 number of chromosomes, 22 pairs or 44 number of chromosomes are called autosomes and one pair or 2 chromosomes are only sex chromosomes.

23 pairs of chromosomes an organism has 50% come from the mother side and other 50% come from the Father side.

Sexually reproducing organism produces gametes and the gametes are produced after Meiosis division or reduction division. Male gametes are called Sperms and female are called egg or ova.

Due to sexual reproduction both the both the gametes  ie. Sperm and an egg unite together to form Zygote. Zygote leads to the formation of an embryo or the future organism.