Question

in the formation of a baby boy or girl mother does not have the main role?why

Answer 1

Answer:

becoz it depends whether the sperm with x chromosome or y chromosome is fused with the egg or ovum ... therefore its depends on the father not mother

Answer 2

When a normal individual is formed, one sex chromosomes is passed down from the mother but one sex chromosome is inherited from the father.

• It should be clear that the father's genes decide if the child will biologically become a boy or a girl since the mother can only contribute X chromosomes.
• Sperm cells produced in the father's gonads during the meiotic process carry the father's genetic material to the unborn child.
• In a typical father, one X chromosome is carried by each sperm cell, which will ultimately result in a girl, whereas one Y chromosome is carried by each sperm cell, which will finally result in a boy.
• A initial spermatocyte cell with a complete set of chromosomes experiences multiplication and two phases of division during the meiosis cycle inside the father's testes to produce four sperm cells, each of which has just a quarter of chromosome.

SPJ2