What are the two possible genotypes?

A description of the pair of alleles in our DNA is called the genotype. Since there are three different alleles, there are a total of six different genotypes at the human ABO genetic locus. The different possible genotypes are AA, AO, BB, BO, AB, and OO.

What are the two types of genotypes?

There are three available genotypes, PP (homozygous dominant ), Pp (heterozygous), and pp (homozygous recessive). All three have different genotypes but the first two have the same phenotype (purple) as distinct from the third (white).

Can you have two genotype?

So if you have a dominant trait, you have two possible genotypes. You could either have two dominant versions of the gene that leads to the trait or one recessive and one dominant version. With either genotype you show the dominant trait.

What are the 2 possible genotypes for Type B?

Their genotype is either AA or AO. Similarly, someone who is blood type B could have a genotype of either BB or BO.

What are the 3 genotypes?

There are three types of genotypes: homozygous dominant, homozygous recessive, and hetrozygous.

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How many genotypes are there?

A description of the pair of alleles in our DNA is called the genotype. Since there are three different alleles, there are a total of six different genotypes at the human ABO genetic locus. The different possible genotypes are AA, AO, BB, BO, AB, and OO.

What are the types of genotypes?

In a nutshell: your genotype is your complete heritable genetic identity; the sum total of genes transmitted from parent to offspring. There are four hemoglobin genotypes (hemoglobin pairs/formations) in humans: AA, AS, SS and AC (uncommon). SS and AC are the abnormal genotypes or the sickle cells.

What is genotype AA?

The term “homozygous” is used to describe the pairs “AA” and “aa” because the alleles in the pair are the same, i.e. both dominant or both recessive. In contrast, the term “heterozygous” is used to describe the allelic pair, “Aa”.

Can AA genotype marry AA?

Compatible genotypes for marriage are:

AA marries an AA. That’s the best compatible. That way you save your future children the worry about genotype compatibility. … And definitely, SS and SS must not marry since there’s absolutely no chance of escaping having a child with the sickle cell disease.

What is the genotype of O+ blood group?

This is because the dominant A allele will overshadow the recessive O allele. However, if someone were to have the genotype AB, they would have blood type AB because both the A and B alleles are dominant.

Genotypes.

Blood Type Genotype
Blood Type B Genotypes BB or BO
Blood Type AB Genotype AB
Blood Type O Genotype OO
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What is BB genotype?

An organism with two dominant alleles for a trait is said to have a homozygous dominant genotype. … In our example, this genotype is written Bb. Finally, the genotype of an organism with two recessive alleles is called homozygous recessive. In the eye color example, this genotype is written bb.

What is the phenotype of TT?

The phenotype of a plant with the genotype Tt would be tall. Here tallness (T) is a dominant trait over dwarfness (t), which is recessive. Tallness and dwarfness (stem height) are one of the seven contrasting pairs of traits in pea plants studied by Mendel.

What are the possible genotypes and phenotypes?

Genotype & Phenotype. Definitions: phenotype is the constellation of observable traits; genotype is the genetic endowment of the individual. Phenotype = genotype + development (in a given environment). … With alleles ‘A’ and ‘a’ there are three possible genotypes AA, Aa and aa.

What are possible phenotypes?

The phenotype is the physical manifestation of an organism’s allellic combination (genotype). For the pea plants, if the red allele is dominant and the white allele is recessive, only two phenotypes are possible. … The phenotype can be either red or white flower color, depending on the genotype.

What is human genotype?

A genotype is an individual’s collection of genes. The term also can refer to the two alleles inherited for a particular gene. … The expression of the genotype contributes to the individual’s observable traits, called the phenotype.

How many genotypes are possible with 2 alleles?

Given a set of assumptions (discussed below), this theorem states that: allele frequencies in a population will not change from generation to generation. if the allele frequencies in a population with two alleles at a locus are p and q, then the expected genotype frequencies are p2, 2pq, and q2.

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