What is determination of sex??
Answers
Answer:
a girl and boy have 36 pair of chromosome girls have xx and boy have xy if boy is giving x and girlbis givingx then the baby was girl
Answer:
we know that
the human being have 46 chromosomes in the nuclei of their cell.out of these 44 are known autosomes and last pair is termed as sex chromosomes. This last pair of different in males and females.in males, it is xy and in females it is xx.
The gametes have half the number of Chromosomes as that of cells occurring elsewhere in the body.this means that will always have(22+x)chromosomes while sperm have either (22+x) or(22+y)chromosomes.
During fertilisation, if an egg fuses with (22+ y)sperm, the resultant Zyote will develop into a male child if any uses with a (22 + x ) sperm the resultant zygote will develop into female child.