AP BIOLOGY

Detailed explanation-1: -Both alleles A and B are expressed in individuals with the AB blood type. A and B alleles are considered codominant with respect to each other. Blood group O is recessive to A and B because individuals with AA or AO alleles have an A phenotype and individuals with BB or BO alleles have a B phenotype.

Detailed explanation-2: -The ABO blood type is inherited in an autosomal codominant fashion. The A and B alleles are codominant, and the O allele is recessive.

Detailed explanation-3: -It is easy and inexpensive to determine an individual’s ABO type from a few drops of blood. A serum containing anti-A antibodies is mixed with some of the blood. Another serum with anti-B antibodies is mixed with the remaining sample. Whether or not agglutination occurs in either sample indicates the ABO type.

Detailed explanation-4: -If you have an AA or AO genotype, you will have the phenotype of type A blood; if you have a BB or BO genotype, you will have a type B blood phenotype; if you have an AB genotype, you will have a type AB blood phenotype; and if you have an OO genotype, you will have a type O blood phenotype.

Detailed explanation-5: -Each of their kids has around a 1 in 8 chance of having O negative blood. This is possible because both O and Rh-are something called recessive traits. This means they can hide out in your DNA without you even knowing it.