alleryKlinefelter's syndrome is characterised by the karyotype:
A45, X0
B47, +21
C47, XYY
D47, XXY
Answer & Solution
Correct answer: D. 47, XXY
**Klinefelter's syndrome = 47, XXY** (extra X in a male).
Overall masculine development but with gynaecomastia (breast development).
Such individuals are sterile.
Keep practising Principles of Inheritance and Variation
Browse all Principles of Inheritance and Variation questions for NEET UG, or explore more Biology topics.
Related questions
Which genotype shows the sickle-cell trait but not the disease?Pleiotropy in most cases arises from a gene's effect on:Mendel's study was the first in biology to apply which tools?How many chromosome combinations can independent assortment give a human gamete?Which karyotype is found in Turner's syndrome?Gynaecomastia in an otherwise masculine individual is a sign of:What is the karyotype of a person with Klinefelter's syndrome?Who first described Down's syndrome in 1866?