PHYSIOLOGY
REPRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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identical twins
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fraternal twins
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Either A or B
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None of the above
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Detailed explanation-1: -Two separate eggs (ova) are fertilised by two separate sperm, resulting in fraternal or ‘dizygotic’ (two-cell) twins. These babies will be no more alike than siblings born at separate times. The babies can be either the same sex or different sexes, with the odds roughly equal for each.
Detailed explanation-2: -… Fraternal twins (also called dizygotic twins) result from the fertilization of two separate eggs with two different sperm during the same pregnancy.
Detailed explanation-3: -Fraternal twins, or dizygotic twins, happen when two different eggs are fertilized by two sperm.
Detailed explanation-4: -Sometimes a woman’s ovaries release 2 eggs, and a separate sperm fertilises each egg. This forms twins. These twins are called fraternal twins, dizygotic twins (meaning two zygotes) or non-identical twins.