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In man, gene producing the disease phenylketonuria also produces a number of abnormal phenotypic traits, which collectively makes the syndrome. This gene results mental retardation, widely spaced incisors, pigmented patches on the skin and excessive sweating. Such types of genes are called as
In man, gene producing the disease phenylketonuria also produces a number of abnormal phenotypic traits, which collectively makes the syndrome. This gene results mental retardation, widely spaced incisors, pigmented patches on the skin and excessive sweating. Such types of genes are called as
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Solution
The correct option is B Pleiotropic genes
Pleiotropy refers to the phenomenon in which a single gene controls several distinct, and seemingly unrelated, phenotypic effects.
A classic example of pleiotropy is the human disease PKU (phenylketonuria). This disease can cause mental retardation and reduced hair and skin pigmentation, and can be caused by any of a large number of mutations in a single gene that codes for an enzyme (phenylalanine hydroxylase) that converts the amino acid phenylalanine to tyrosine, another amino acid.
Pleiotropy refers to the phenomenon in which a single gene controls several distinct, and seemingly unrelated, phenotypic effects.
A classic example of pleiotropy is the human disease PKU (phenylketonuria). This disease can cause mental retardation and reduced hair and skin pigmentation, and can be caused by any of a large number of mutations in a single gene that codes for an enzyme (phenylalanine hydroxylase) that converts the amino acid phenylalanine to tyrosine, another amino acid.
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