Albinism in humans is inherited as a simple recessive trait. For ...

Question

Albinism in humans is inherited as a simple recessive trait. For the following families, determine the genotypes of the parents and offspring. (When two alternative genotypes are possible, list both.)

A normal male and an albino female have six children, three normal and three albino.

Accepted Answer

Hi everyone. Let's look at our next problem. It says sickle cell anemia is an autism recessive disorder. A female who is a carrier of the sickle cell trait gives birth to one unaffected child and one child with sickle cell disease determine the genotype and trait of their father. And then big H. Little B. With a superscript A. Is the normal hemoglobin. Aaliyah and Hb superscript asked the sickle cell hemoglobin. Aaliyah. So let's start with what we know. We know that the mother is hetero ziggy's, she's a carrier for this recessive disease. So her genotype will be H. B. A. H. B. S. And then the two Children we have the unaffected child whose homes I guess for the normal a little H. B. A. And then the second child who has sickle cell disease and therefore being a recessive allele must be homos I guess recessive. Now the mother of course passes on one allele to each child and she has both types. So she's passed on a in one case and S. And the other. And now our question asked us to determine the genotype and trait of the father. Well both Children are homicide. It's one for the dominant gene and one for the recessive gene. So we know that the father must therefore be hetero ziggy's as well because he must also be able to pass on either type of gene. So he must have one copy of each. So the father must be a carrier for sickle cell since he's hetero sickness. So that would be choice C. H. B. A. H. B. S. Sickle cell carrier, See you in the next video.

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Albinism in humans is inherited as a simple recessive trait. For the following families, determine the genotypes of the parents and offspring. (When two alternative genotypes are possible, list both.) A normal male and an albino female have six children, three normal and three albino.