Quick Answer: Which allele is dominant color?

Alleles are alternative forms of a gene that, in this case, are responsible for giving your baby a certain eye color. 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.

How do you know which allele is dominant?

A dominant allele is denoted by a capital letter (A versus a). Since each parent provides one allele, the possible combinations are: AA, Aa, and aa. Offspring whose genotype is either AA or Aa will have the dominant trait expressed phenotypically, while aa individuals express the recessive trait.

Which allele is dominant and which color fur does it produce?

It comes in three alleles, or types. The B allele, which produces black fur, is dominant, meaning a cat only needs to get a B allele from one parent in order to be black. Two other recessive alleles of the B gene, b and b’, produce chocolate and cinnamon coat colors, respectively.

How can you determine whether green or yellow is the dominant allele?

Plants with two different alleles of a gene are heterozygous. Since all the heterozygous offspring are yellow, then the yellow allele must be dominant over the recessive green allele. The green allele didn’t disappear; its effect is not seen in heterozygotes.

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Which trait is dominant?

(In genetic terms, a dominant trait is one that is phenotypically expressed in heterozygotes). A dominant trait is opposed to a recessive trait which is expressed only when two copies of the gene are present.

Which color is dominant gray or black?

In cats, black coat color is dominant over gray. A female black cat whose mother is gray mates with a gray male. If this female has a litter of kittens, what is the probability that the mating will produce gray kittens?

What color is dominant?

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.

Is BB homozygous dominant?

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. An organism with one dominant allele and one recessive allele is said to have a heterozygous genotype.

Are white flowers dominant or recessive?


Trait Dominant Expression Recessive Expression
Color of flower (P) Purple White
Form of ripe pods (I) Inflated Constricted
Color of unripe pods (G) Green Yellow
Position of flowers (A) Axial Terminal

Why are yellow peas dominant?

Yy pea plants? Turns out they have yellow peas because the yellow version, Y, is dominant over the recessive green version, y. … When a pea plant makes seeds, only one of its two copies of the color gene goes into the seed. So if you have two green pea plants, each can only pass a green version.

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Is TT homozygous dominant?

An organism can be either homozygous dominant ( TT ) or homozygous recessive ( tt ). If an organism has two different alleles ( Tt ) for a certain gene, it is known as heterozygous (hetero- means different).

Is blue eyes dominant or recessive?

The brown eye form of the eye color gene (or allele) is dominant, whereas the blue eye allele is recessive. If both parents have brown eyes yet carry the allele for blue eyes, a quarter of the children will have blue eyes, and three quarters will have brown eyes.

What is a dominant allele quizlet?

A dominant allele is an allele whose trait always shows up in the organism when the allele is present. … A recessive allele is an allele that is masked when a dominant allele is present.

Is red hair dominant or recessive?

Red hair is a recessive gene, so your husband has two red hair genes. The only way for your child to have red hair is if you have a recessive red gene (being covered by the dominant brown hair gene) and that is the gene that gets passed onto the baby.