How many alleles are there in AA?

What is the genotype of AA?

If someone has blood type A, they must have at least one copy of the A allele, but they could have two copies. Their genotype is either AA or AO. Similarly, someone who is blood type B could have a genotype of either BB or BO.

How many alleles total?

Although individual humans (and all diploid organisms) can only have two alleles for a given gene, multiple alleles may exist at the population level such that many combinations of two alleles are observed.

Is AA heterozygous or homozygous?

If an organism has two copies of the same allele, for example AA or aa, it is homozygous for that trait. If the organism has one copy of two different alleles, for example Aa, it is heterozygous.

What is AA AS and SS genotype?

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. We all have a specific pair of these hemoglobin in our blood which we inherited from both parents.

What is sickle cell AA?

Sickle cell anemia, or sickle cell disease (SCD), is a genetic disease of the red blood cells (RBCs). Normally, RBCs are shaped like discs, which gives them the flexibility to travel through even the smallest blood vessels. However, with this disease, the RBCs have an abnormal crescent shape resembling a sickle.

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What is AA genotype sickness?

Children with genotype AA (92.3%) were more susceptible to malaria parasite than AS (5.1%) and SS (2.6%). The association of haemoglobin genotype with malaria was highly significant (pCan AA marry AA genotype?

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.

Is AA a recessive phenotype?

The correct answer is aa only. The genotype aa would result in an individual with the recessive phenotype. aa is a homozygous genotype that consists of two recessive alleles.

What is a genotype What is a phenotype?

The genotype refers to the genetic material passed between generations, and the phenotype is observable characteristics or traits of an organism.