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Question
First child of a normal pigmented couple is albino. The possibility of a second child being an albino is
First child of a normal pigmented couple is albino. The possibility of a second child being an albino is
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Solution
The correct option is A 25%
Albinism is
a autosomal genetical recessive gene disorder. It occurs in homozygous
recessive state. A person is homozygous recessive and contain gene for
albinism, gets albinism. For a couple, first child is albino, because in the
couple, recessive gene for albino is present, but not in expressive state.
These genes enter into the first child and become active, results the occurrence
of albino. In the second child, chances become less, due to assortment of
genes. So, only 25% chances exists to get albino.
So,
the correct option is ‘25%’.
Albinism is a autosomal genetical recessive gene disorder. It occurs in homozygous recessive state. A person is homozygous recessive and contain gene for albinism, gets albinism. For a couple, first child is albino, because in the couple, recessive gene for albino is present, but not in expressive state. These genes enter into the first child and become active, results the occurrence of albino. In the second child, chances become less, due to assortment of genes. So, only 25% chances exists to get albino.
So, the correct option is ‘25%’.Suggest Corrections
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