please provide explanation and steps. Thank you Suppose that certain genes relat

Question

please provide explanation and steps.   Thank you

Suppose that certain genes related to the eye, ear, nose, and throat are present in two autosomes, and each of these genes has multiple alleles. The eye and ear genes have a recombination frequency of 25%, and the nose and throat genes have a recombination frequency of 35%. As a genetic counselor, you are examining these genes in a couple who are interested in having children soon. Simplified illustrations of the mother's and father's genotypes are below.

Explanation / Answer

Recombination frequency between the eye and ear gene is 25%.

Now, chances of having parental types eye7/ear4 and eye8/ear5 = 25% each.

Chances of having recombinant types eye7/ear5 and eye8/ear4 = 25% each.

Now, if eye7 is inherited from the mom then, there are 50% chances of having eye8 from the father (25% in the form of parental type and 25% in the form of the recombinant).

So, the answer is 50% (and not 0%).

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