Check sibling questions

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.

 

Answer:

CHROMOSOMES DIVISION IN SEXUAL REPRODUCTION - Teachoo.png

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 12 years and a teacher from the past 16 years. He teaches Science, Accounts and English at Teachoo