Mention two symptoms and chromosomal abnormality of Klinefelter's syndrome. **OR** What do you mean by chromos

Question 49 of 76

Q. Mention two symptoms and chromosomal abnormality of Klinefelter's syndrome. OR What do you mean by chromosomal theory of inheritance? What is Barr body?

West Bengal WbchseWest Bengal HS (WBCHSE) Board 2022Subjective· 3mImportance★★★★★

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Klinefelter's syndrome results from non-disjunction producing an extra X chromosome (47, XXY karyotype) in a male.

Two symptoms:

Development of breast tissue (gynaecomastia) — a feminine secondary sexual characteristic in an otherwise male individual.
Sterility (inability to produce viable sperm), along with tallness of stature and mild mental retardation in some cases. …

Q.Mention two symptoms and chromosomal abnormality of Klinefelter's syndrome. OR What do you mean by chromosomal theory of inheritance? What is Barr body?