GENETICS AND EVOLUTION
INHERITANCE AND VARIATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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from our mum
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from our dad
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some from both
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half from each parent
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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: -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-4: -With a couple exceptions, we actually get half our DNA from mom and half from dad. That’s because DNA is organized in 23 pairs of long strands called chromosomes. Mom will give you one chromosome of each pair, while dad gives the other. DNA is made up of units of information called genes.