LIFE SCIENCE

Detailed explanation-1: -Each gamete contains half the number of chromosomes, or genetic material, of the organism. So, each sperm contains 50% of the father’s genes and each egg contains 50% of the mother’s genes. This makes gametes different from other cells in the body.

Detailed explanation-2: -To form a fetus, an egg from the mother and sperm from the father come together. The egg and sperm each have one half of a set of chromosomes. The egg and sperm together give the baby the full set of chromosomes. So, half the baby’s DNA comes from the mother and half comes from the father.

Detailed explanation-3: -After all, children inherit half of their DNA from each parent: 50 percent from mom (through an egg), and 50 percent from dad (through sperm). So how can biological siblings have different results?