Question

How many number of chromosomes are present in the human beings? What is sex determination?

Answer 1

Answer:

Answer:Sex chromosome, either of a pair of chromosomes that determine whether an individual is male or female. The sex chromosomes of human beings and other mammals are designated by scientists as X and Y. In humans the sex chromosomes comprise one pair of the total of 23 pairs of chromosomes.

sex-determination system is a biological system that determines the development of sexual characteristics in an organism. Most organisms that create their offspring using sexual reproduction have two sexes. Occasionally, there are hermaphrodites in place of one or both sexes. There are also some species that are only one sex due to parthenogenesis, the act of a female reproducing without fertilization.

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Answer 2

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23 pairs of chromosomes are present in a human being. Out of these 23rd pair is of sex chromosomes.

Sex determination means determing gender/sex of a person, i. e, if the child is a boy or a girl.

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