OBJECTIVE LIFE SCIENCE
GENETICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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If a gene is found only on the X chromosome and not the Y chromosome, it is said to be what?
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sex-linked trait
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polygenic trait
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codominant trait
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incomplete dominance trait
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Explanation:
Detailed explanation-1: -When a gene is present on the X chromosome, but not on the Y chromosome, it is said to be X-linked.
Detailed explanation-2: -A female with Turner syndrome is missing part or all of 1 sex chromosome. This means she has just 1 complete X chromosome. The Y chromosome determines “maleness", so if it’s missing, as in Turner syndrome, the sex of the child will invariably be female.
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