In male the sex determining gene is
Correct answer: B. SRY
- A. XY
- B. SRY
- C. SYX
- D. SXX
Explanation
Y chromosome has an SRY gene. It is the sex determining region Y gene. It is Y linked gene because it is found only on the Y chromosome.
This question appeared on the UHS MDCAT 2014 paper, which you can sit online with every answer explained.
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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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