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What is the probability of the following set of parents producing the given geno

ID: 15877 • Letter: W

Question

What is the probability of the following set of parents producing the given genotype in their offspring?

Parents' Genotype

AaBb x AABb

Offspring Genotype

aabb

I'm still a little confused on the addition rules vs. multiplication rules when it comes to probability in genetics, and I know that this question directly involves these rules. I have several more questions like this one, and it would be beneficial to see how someone else works these problems. I am beginning to get the gist of these types of problems, but the more difficult ones throw me for a loop. Thank you so much for helping! Also, please don't copy from a website - believe me, I have been desperate enough to learn this that I have searched through online tutorials in addition to my textbook, etc for help :)

Thank you SO very much! :)

Explanation / Answer

Parents' Genotype
AaBb x AABb

Offspring Genotype
aabb
Aa           Bb x    AABb
½         ½ 1 ½


------- aabb--------½ x 0 x 1 x ½ -------zero

answer -probability of -total ------zero

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