Taking into account both the odds of allele inheritance and carrier risk, what are the odds that she and her partner will have an affected child if he is of Northern European descent and unknown CF carrier status? a) 50%
b) 3.5%
c) 1.8%
d) 0%

Option a (50%) is the correct answer.

Explanation:

Other choices are not related to the given scenario. Thus, for only one of every parent, 50% of Aa.

the answer would be  

c. neighborhood watch

hope this .

well when looking at this if you think about it   negativley and positivley   react with each other and when the first layer gets full they add layers it starts with 2 on the first layer and it constantly goes on until the official number is there