Which of the following traits is transmitted directly from an affected father to only his son?
Correct answer: C. Y-linked
- A. Autosomal
- B. X-linked
- C. Y-linked
- D. X-Y linked
Explanation
Y-linked traits are passed from father to son through the Y chromosome. They are not present on the X chromosome and are specific to male inheritance
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About X-linked Recessive Inheritance
X-linked recessive inheritance involves genes on the X chromosome, so males express a recessive allele with no corresponding allele on their single X chromosome, while females may be carriers. Pedigrees cover haemophilia and red-green colour blindness, including carrier mothers, affected sons and the absence of father-to-son transmission.
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