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Klinefelter’s syndrome is caused
Option: 1
In females having an extra X-chromosome

Option: 2
In males having an extra X-chromosome

Option: 3
In females lacking one X chromosome

Option: 4
In male having an extra Y chromosome

Answers (1)

best_answer

As we have already discussed in Chromosomal Disorders -

Klinefelter’s Syndrome:

It occurs due to the presence of an additional copy of X-chromosome resulting in the karyotype 45 + XXY which results into 47 chromosomes.
Symptoms:
- Individuals have masculine development but feminine characters like the development of breasts, (gynecomastia) etc.
- Poor bread growth and often sterile and feminine pitched voice.

Hence, the correct option is (b).

Posted by

Rishi

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