Mention the total number of chromosomes along with the sex chromosomes that are present in a human female and a human male. Explain how in sexually producing organisms the number of chromosomes in the progeny remains the same as that of the parents.




The total number of chromosomes present in both human females and males are 46 .

In human males, the 2 sex chromosomes found are X or Y , whereas in human females, both the sex chromosomes are X.

During sexual reproduction, the male gamete fuses with the female gamete and forms a zygote. A zygote is diploid ie., it contains 23 chromosomes from the mother and 23 chromosomes from the father . In this way, an equal genetic contribution of male and female parents is ensured in the Progeny.

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CA Maninder Singh is a Chartered Accountant for the past 13 years and a teacher from the past 17 years. He teaches Science, Economics, Accounting and English at Teachoo