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You observe a genetic trait which is a common occurrence in the male of a particular pedigree, this is possibly a ______________(a) X linked(b) Y linked(c) X linked recessive(d) Y linked dominantI got this question by my school teacher while I was bunking the class.I want to ask this question from Chromosomal Theory of Inheritance topic in portion Chromosomal Basis of Inheritance of Cytogenetics

Answer»

Right answer is (b) Y linked

Best explanation: If the gene has a sex bias it is CERTAINLY sex linked. In this CASE, it is a common OCCURANCE in the MALES only in a pedigree so it must be Y linked gene. There is no dominant recessive as Y is always hemizygous.



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