Klinefelter syndrome males have 47 chromosomes with XXY sex chromosomes.
NEET UG 2019 — Biology Genetics
Klinefelter syndrome has the chromosomal composition
Verified 30 May 2026.
44+XO
44+XXY
44+XYY
44+XX
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In a dihybrid cross, the phenotypic ratio in F₂ generation is:
In a dihybrid cross between RrYy × RrYy, the phenotypic ratio of round yellow to wrinkled green is:
Which of the following is a sex-linked recessive disorder?
The phenotypic ratio of a monohybrid cross in F₂ generation is:
In Mendel's monohybrid cross, the phenotypic ratio in F₂ generation is:
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