Question

The chromosomes in body cells have 1 pair of sex chromosome. Then what is the function of sex chromosome in body cells?

Answer 1

When an egg and sperm cell come together, the now fertilised egg contains 23 pairs of chromosomes. Sex chromosomes are responsible for certain genetic traits.
Sex cells and chromosomes

Human body cells each contain 23 pairs of chromosomes. Parents pass on their genes to their offspring in their sex cells.

female sex cells are called egg cells, or ova
male sex cells are called sperm.

the female egg and the male sperm fuse to create a zygote cell which then turns into an embryo. 23 chromosomes from the male and female each make 46 chromosomes in 23 pairs

Process of fertilisation

A pair of chromosomes carry the same genes in the same place, on each chromosome within the pair. However, there are different versions of a gene called alleles. These alleles may be the same (homozygous) on each pair of chromosomes, or different (heterozygous), for example, to give blue eyes or brown eyes.

Sex cells only contain one chromosome from each pair. When an egg cell and sperm cell join together, the fertilised egg cell contains 23 pairs of chromosomes. One chromosome in each pair comes from the mother, the other from the father.

Which chromosome we get from each pair is completely random. This means different children in the same family will each get a different combination. This is why children in the same family look a little like each other and a little like each parent, but are not identical to them.
OR IN SHORT YOU CAN SAY THEY HELP. IN GENETIC INHERITANCE

Answer 2

Hi friend ,
The sex chromosomes are responsible for certain genetic traits.
Hope this helps. . . . Cheers. . .
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