Question

How is the chromosome number of the sexually reproducing parents and their offspring the same?

Answer 1

Hi friend, Here is the required answer:-
Number of chromosomes is halved during gamete formation. As a result the number of chromosomes in the gamete is half the number of chromosomes in somatic cells.When male and female gametes fuse during fertilization, the number of chromosomes becomes equal to that in somatic cells. This is how offsprings and parents of organisms reproducing sexually have the same number of chromosomes.
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Answer 2

The chromosomes number of the sexually reproducing parents and their offspring is same. As we know, in case of sexual reproduction, the genetic material DNA constitutes both gametes i.e. of male and female. These are combined to form the a new cell known as zygote but the no. of chromosome remains the same and doesn't gets doubled. This is because gametes contain only half amount of DNA i.e. half number of chromosomes. SO, a zygote carries half chromosomes from male and half from female. Therefore, the new cell formed have normal no. of chromosomes.