GENETICS AND EVOLUTION
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Females receive 75%
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Males receive 75%
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50% regardless of gender
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None of the above
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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). So how can biological siblings have different results?
Detailed explanation-3: -You can’t inherit more than half of an ancestor’s DNA You receive 50% of your genes from each of your parents, but the percentages of DNA you received from ancestors at the grandparent level and further back are not necessarily neatly divided in two with each generation.
Detailed explanation-4: -Autosomal dominant inheritance: A person affected by an autosomal dominant disorder has a 50 percent chance of passing the altered gene to each child.