Question

BLOOD TYPE PROBLEMS BELOW:Phenotype GenotypesType A AA or AOType B BB or BOType AB ABType O OOQUESTION AWrite the genotype for each person based on the description:Homozygous for the “B” allele ____________Heterozygous for the “A” allele ____________Type O __________Type “A” and had a type “O” parent ___________Blood can be donated to anybody ____________ f. Can only get blood from a type “O” donor ___________QUESTION BComplete a Punnett square to analyze to answer the following quesiton: John is homozygous for the type B allele, and Jenny is type “O.” What are all the possible blood types of their baby?QUESTION CComplete a Punnett square to interpret to answer the following: What are all the possible blood types for the offspring produced by a type “O” mother and a type “AB” father.QUESTION DA man with type AB blood is married to a woman with type O blood. They have two natural children, and one adopted child. The children's blood types are: A, B, and O. Which child was adopted?

Answer 1

Explanation for QUESTION A:

Remember that the blood types that exist refer to the antigens present on the membrane of the erythrocytes. If a person has the A antigen on the surface of their erythrocytes, their blood type will be type A. Analogously to type B blood. On the other hand, there are people who present both antigens (they are heterozygous for the antigens), and their blood type is AB. Those who do not have any antigens will have an O blood type.

Now, an organism is homozygous for a gene when the two alleles are the same. An organism is heterozygous for a gene when the two alleles are different.

Thus, consider the following information:

Phenotype Genotypes



Type A AA or AO

Type B BB or BO

Type AB AB

Type O OO

Applying what was said above to the previous table, we can conclude that the correct answer is:

Answer:

Homozygous for the “B” allele: BB___

Heterozygous for the “A” allele: AO

Type O: OO

Type “A” and had a type “O” parent: AO

Blood can be donated to anybody: OO

Can only get blood from a type “O” donor: OO