Answer:
A) The two genes are unlinked and are assorting independently, leading to a 1:1:1:1 ratio of phenotypes in the offspring.
Explanation:
The χ2 value means nothing on its own--it is used to find the probability that, assuming the hypothesis is true, the observed data set could have resulted from random fluctuations. A low probability suggests the observed data is not consistent with the hypothesis, and thus the hypothesis should be rejected. The hypothesis that you are testing are two genes are unlinked and are assorting independently, leading to a 1:1:1:1 ratio of phenotypes in the offspring.
 
        
             
        
        
        
B is the compound because a compound is two or more different atoms that combine.
 
        
             
        
        
        
Answer:
This could be possible if the  wife  is a carrier of the FMO3 allele.   Therefore the two carrier parents must have  passed the defective alleles to the child, who now possessed the gene for the FMO3, and said to be dominant for the fish odor.
In genetics a Carrier  is an individual who inherited a defective allele (FMO3) , but do not show the manifestations of the allele, or symptoms of the diseases attributed to it. Therefore the wife is a Carrier for the allele if the child could show this symptoms of fish odor.
Explanation:
 
        
             
        
        
        
What exercise? Post a picture of it.