Thursday, November 19, 2009

A Y linked trait is passed to?

A Y linked trait is passed from :


A) Father to Daughter


B) Mother to Daughter


C) Father to Son


D) Mother to Son

A Y linked trait is passed to?
Father to son. All males get a Y and no females do, so this is the only possible answer for a Y linked gene.
Reply:Answer is 'C' i.e. Father to Son


This is so coz' only males have Y chromosome which they obviously get from father.. and there is no chance of a female to get that trait as their sex chromosomes comprises XX and no Y is there..
Reply:C) Father to Son.


This is because the father always determines the sex of the child. The mother can only pass down an X chromosome, since she is XX, the father can pass down and X or a Y, thus determining the sex of the child. If he passes the Y, the child has to be male. Therefore the Y linked trait is passed from father to son.


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