What genotype does someone have if they are homozygous for blue eyes?

Finally, the genotype of an organism with two recessive alleles is called homozygous recessive. In the eye color example, this genotype is written bb. Of these three genotypes, only bb, the homozygous recessive genotype, will produce a phenotype of blue eyes.

What is the genotype of a female who is homozygous for eye color?

Phenotype and genotype of female

She is homozygous dominant for the eye color allele. Her genotype would be Xw+y Xw+y.

Are blue eyes homozygous?

We all have two alleles, or versions, of each gene. … People who have recessive traits, like blue eyes or red hair, are always homozygous for that gene. The recessive allele is expressed because there isn’t a dominant one to mask it.

Is AA genotype homozygous?

A homozygous genotype means that you have two of the same alleles, which are represented by the letters A or a. So if an individual has AA or aa, we say they are homozygous.

Why can’t we tell a person’s phenotype from his her genotype?

You can’t tell a person’s phenotype from his/her genotype because some alleles may be sex-linked or co-dominant, and this won’t show in the phenotype of an organism.

What’s the genotype for blue eyes?

Finally, the genotype of an organism with two recessive alleles is called homozygous recessive. In the eye color example, this genotype is written bb. Of these three genotypes, only bb, the homozygous recessive genotype, will produce a phenotype of blue eyes.

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Are blue eyes dominant or recessive?

Blue will always be recessive. If both parents have a blue allele, it is likely that the child will have blue eyes. However, if one parent has green eyes and the other blue, your child will most likely have green eyes, as green is dominant over blue.

Is AA a good genotype?

Compatible genotypes for marriage are:

That way you save your future children the worry about genotype compatibility. AA marries an AS. You’ll end up with kids with AA and AS which is good.

Is AA a genotype?

What is a 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.

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