Question in image

Question in image anti-A 158. Wh •ch of the following is correct with respect to sex linked : fother passes the sex linked trait to sons only (2) Dominant sex linked alleles express more in males 43/ Sex linked allele can transmitted from father to son (4) Shows similar results for reciprocal crosses

Dear student,
Option (1) is incorrect as the mother can pass sex linked traits to daughter as well in case of a dominant allele. 
Option (2) is incorrect as dominant sex alleles can express in males and females equally, as it is dominant and expresses irrespective of the lack of another allele(in case of male) or the presence of another dominant or recessive allele(in case of female). 
Option (3) is correct as sex linked allele can transmit from father to son in case it is a  Y-linked gene. 
Option (4) is incorrect as the reciprocal cross cannot be done for sex linked traits. 
Therefore, answer is Option (3). 
Regards. 

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