AP BIOLOGY

Detailed explanation-1: -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-2: -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).

Detailed explanation-3: -Your genome is inherited from your parents, half from your mother and half from your father. The gametes are formed during a process called meiosis. Like your genome, each gamete is unique, which explains why siblings from the same parents do not look the same.

Detailed explanation-4: -Genetically, you actually carry more of your mother’s genes than your father’s. That’s because of little organelles that live within your cells, the mitochondria, which you only receive from your mother.

Detailed explanation-5: -Like siblings, parents and children share 50 percent of their DNA with one another. While the shared DNA between full siblings includes 25 percent of the mother’s DNA and 25 percent of the father’s DNA, the DNA shared between a parent and child is 50 percent of that parent’s DNA.