Is eye Colour a phenotype?


Is green eyes a genotype or phenotype?

3. Both green and brown eyes are [ dominant / recessive ] to blue eyes. 4. There are [ one / two / three / four ] possible genotypes for green eyes.

Is red eyes a phenotype?

Except for the red-eye phenotype, no other differences were observed between the wild-type (brown eye) and the mutant-type (red eye) in external characters. Genetic analysis revealed that the red-eye phenotype was controlled by a single autosomal recessive allele.

Is eye color phenotype or genotype?

The visible eye color is your phenotype, but it tells us nothing about your genotype. Multiple different genes affect eye color in humans, and any of them could manifest dominant or recessive traits in your phenotype – that is, the unique shade of brown in your eyes.

What is example of phenotype?

The term “phenotype” refers to the observable physical properties of an organism; these include the organism’s appearance, development, and behavior. … Examples of phenotypes include height, wing length, and hair color.

What is the genotype for eye color?

With eye color, for instance, “B” stands for a brown allele and “b” stands for a blue allele. An organism with two dominant alleles for a trait is said to have a homozygous dominant genotype. Using the eye color example, this genotype is written BB.

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Is green eyes dominant or recessive?

The allele genes come in the form of brown, blue, or green, with brown being dominant, followed by green, and blue being the least dominant or what is called recessive. Given this information, you can determine what eye colors are dominant in the parents.

Is the white eyed phenotype dominant or recessive?

The eye color gene is located on the X chromosome (one of the sex determining chromosomes of Drosophila). White eye color is recessive.

What happens when you cross a white eyed female fruit fly with a red eyed male fruit fly?

When a female fruit fly with recessive x-linked white-eyed is crossed with a red-eyed male will yield heterozygous daughters with red-eyed and hemizygous sons with white-eyed. As the females will receive the dominant red-eyed allele from the male gamete and recessive white-eyed allele from the female gamete.