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Question
An abnormal human male phenotype involving an extra Y-chromosome (XYY) is a case of
An abnormal human male phenotype involving an extra Y-chromosome (XYY) is a case of
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Solution
The correct option is B Jacob syndrome
- Edwards' syndrome is also called as trisomy 18. It is a genetic disorder in which there is one extra copy of chromosome 18. Symptoms include low birth weight, abnormal shape of the head.
- Jacob syndrome is a genetic disorder in which male has one extra copy of Y chromosome. His genotype is XYY. Symptoms include learning disabilities, impulsiveness.
- Intersex is a phenomenon in which an individual contains different reproductive or sexual anatomy than normal male or female.
- Down's syndrome is also called as trisome 21. It is a genetic disorder in which there is one extra copy of chromosome 21. Symptoms include developmental delay, upward slanting eyes, short neck.
Thus, the correct answer is 'Jacob syndrome.'
- Edwards' syndrome is also called as trisomy 18. It is a genetic disorder in which there is one extra copy of chromosome 18. Symptoms include low birth weight, abnormal shape of the head.
- Jacob syndrome is a genetic disorder in which male has one extra copy of Y chromosome. His genotype is XYY. Symptoms include learning disabilities, impulsiveness.
- Intersex is a phenomenon in which an individual contains different reproductive or sexual anatomy than normal male or female.
- Down's syndrome is also called as trisome 21. It is a genetic disorder in which there is one extra copy of chromosome 21. Symptoms include developmental delay, upward slanting eyes, short neck.
Thus, the correct answer is 'Jacob syndrome.'
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