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Biology-Related Homework Help General Biology Topic started by: billyray on Jun 6, 2019



Title: Which of the following rows identifies the possible genotypes of the offspring?
Post by: billyray on Jun 6, 2019
Hemophilia is an X-linked disorder that affects the body’s ability to create blood clots. The allele for normal blood clotting, XH, is dominant over the allele for hemophilia, Xh.

An unaffected female that is not a carrier mated with an affected male. Which of the following rows identifies the possible genotypes of the offspring?
Select one:
a.
Female   Male
XHXh   XHY
 b.
Female   Male
XHXh   XHY and XhY
 c.
Female            Male
XHXH and  XHXh   XHY
 d.
Female               Male
XHXH and  XHXh   XHY  and XhY


An unaffected daughter from the above cross married a man who does not have hemophilia.

Determine the probability of their offspring being
A daughter with hemophilia
A daughter without hemophilia
A son with hemophilia
A son without hemophilia

Express your answer as a phenotypic ratio.
 
Phenotype:
 
Affected  female :
Unaffected female:
Affected male :
Unaffected male: 


Title: Re: Which of the following rows identifies the possible genotypes of the offspring?
Post by: bio_man on Jun 6, 2019
Hi billyray (https://biology-forums.com/index.php?action=profile;u=850957)

Welcome to the forum. We answered this question last year over here: https://biology-forums.com/index.php?topic=1815663.0

Let us know if this helps you