CR: Sex-Linked Genes and Inheritence (11/15)

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mcardeiro
Posts: 2
Joined: Fri Aug 24, 2018 2:15 pm

CR: Sex-Linked Genes and Inheritence (11/15)

Post by mcardeiro » Sat Sep 15, 2018 8:37 am

Hello,

I would just like more explanation on how this answer was reached. I attached a screenshot of the problem. How is there a 10% of the daughter having a X-linked recessive disease when the mother has a 10% that she is heterozygous. Given the father has the disease, wouldn't the daughter have a 5% chance since there is a 50% chance the mother will pass down her affected allele given there is a 10% chance that she can pass it down in the first place.
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NS_Tutor_Phil
Posts: 25
Joined: Fri Jun 01, 2018 9:20 am

Re: CR: Sex-Linked Genes and Inheritence (11/15)

Post by NS_Tutor_Phil » Mon Sep 24, 2018 6:47 pm

You are absolutely right! The mother has a 10% chance of having the allele, but if that is true, then it is 50-50 whether she passes down the mutated allele to a daughter. Good catch! We will get that fixed ASAP.
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