A recessive gene located on the X-chromosome | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) In humans,males are hemizygous for the $X$-chromosome because they possess only one $X$-chromosome $(XY)$.If a recessive gene is present on the $X

Vedclass · Accepted Answer

Expressed in males.

Vedclass · Answer

(D) In humans,males are hemizygous for the $X$-chromosome because they possess only one $X$-chromosome $(XY)$.If a recessive gene is present on the $X$-chromosome of a male,there is no corresponding allele on the $Y$-chromosome to mask its effect.Therefore,the recessive trait will always be expressed in males.In contrast,females have two $X$-chromosomes $(XX)$,so a recessive gene on one $X$-chromosome is usually masked by the dominant allele on the other $X$-chromosome,unless the female is homozygous recessive.

$A$ recessive gene located on the $X$-chromosome of a human is always.....

Similar Questions

In human females,Barr bodies are formed by:

Sex-linked characters have one distinct feature:

Individuals having homomorphic sex chromosomes produce:

Select the $CORRECT$ statement.

Which scientist discovered sex determination in $Melandrium$ $album$?

Vedclass Test Series

Exam Paper Generator

Online Exam Module