Match each statement (a–e) with the best answer from the...

Question

Match each statement (a–e) with the best answer from the following list: consultand, 50%, prior probability, 66.7%, obligate carrier, 100%.

A person who on the basis of family history must be a heterozygous carrier of a recessive mutant allele

Accepted Answer

Hi, everyone. Welcome back. Let's look at the next problem. It says, what is the probability of his son being color blind? If his father is color blind and his mother has normal vision. Note, there is no family history of colorblindness on his mother's side. So let's think about this here. The note is important because you want to eliminate the possibility of the mother being a carrier. So we'll say mother not a carrier. So we're looking at a cross between a father who was color blind. That's our excellent excessive trade. So the father will be X superscript C and then Y and the mother with normal vision and no family history of colorblindness. So presumably not a carrier. So she'll just be X X, no color blindness gene. Well, we don't even need to draw out our square here because a son will inherit an X chromosome from his mother but only a Y chromosome from his father. So that colorblind gene that X superscript C is not even a factor here. The father can only pass that on to his daughters. He will not pass that on to his son who inherits the Y chromosome from him. And then since we presume that the mother has to unaffected X chromosomes, the sun will presumably inherit one of those unaffected excess from the mother. And the sun's genotype will be X Y, no color blind gene. So when we look at our answer choices, the probability of a son being color blind and his father is color blind and his mother has normal vision is choice A zero. And this is what we'd expect because with excellent recessive traits, you don't see father, there's no father, son inheritance for this reason. See you in the next video.

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Match each statement (a–e) with the best answer from the following list: consultand, 50%, prior probability, 66.7%, obligate carrier, 100%.

A person who on the basis of family history must be a heterozygous carrier of a recessive mutant allele

My Courses

Chemistry

Biology

Math

Physics

Business

Social Sciences

Programming

Product & Marketing

Match each statement (a–e) with the best answer from the following list: consultand, 50%, prior probability, 66.7%, obligate carrier, 100%.A person who on the basis of family history must be a heterozygous carrier of a recessive mutant allele

Match each statement (a–e) with the best answer from the following list: consultand, 50%, prior probability, 66.7%, obligate carrier, 100%.

A person who on the basis of family history must be a heterozygous carrier of a recessive mutant allele