Is BB a recessive allele?

Is BB a recessive allele?

Inheritance Example With respect to eye color, the allele for brown eyes (B) is dominant, and the allele for blue eyes (b) is recessive. If a person receives dominant alleles from both parents (BB) she will have brown eyes.

When 2 alleles are the same BB or BB?

As shown in the Table below, an organism with two alleles of the same type (BB or bb) is called a homozygote. An organism with two different alleles (Bb) is called a heterozygote.

What type of allele always shows up in an organism when it is present BB BB?

dominant allele
A dominant allele always shows up in an organism, even when the other allele is present. A recessive allele is hidden whenever the dominant allele is present.

What color fur would an animal have if its genotype is BB?

B, for brown hair, is a dominant allele. This means than someone who has a genotype of “BB” or “Bb” will have brown hair. In other words, that person’s phenotype will be that they have brown hair. Recessive alleles are represented with lowercase letters.

What genotype is BB?

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. In our example, this genotype is written Bb.

What does BB represent in an organism?

Are BB and BB the same genotype?

Genotypes with two alleles that are the same, i.e. ‘BB’ and ‘bb’, are known as homozygous genotypes and genotypes with two different alleles are known as heterozygous genotypes. …

Which of the following describes an organism that has the genotype BB?

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.

Is fur color an allele?

Mendel implied that only two alleles, one dominant and one recessive, could exist for a given gene. An example of multiple alleles is coat color in rabbits (Figure 1). Here, four alleles exist for the c gene. The wild-type version, C +C+, is expressed as brown fur.

What is BB allele?

How are alleles and genotypes related to each other?

An allele is a particular form of a gene and they are passed from parents to their offspring. A genotype is the combination of two alleles, one received from each parent. The expression of a genotype is called the phenotype and the specific combination of the two alleles (the genotype) influences the physical expression (the phenotype)

What is the genotype of two brown eye alleles?

The genotype is the genetic combination of two alleles. If, for example, a child has received one brown-eye allele – represented by ‘B’ – and one blue-eye allele – represented by ‘b’ – then their genotype would be ‘Bb’. If, however, the child received two brown-eye alleles their genotype would be ‘BB’; and a child with two blue-eye alleles ‘bb’.

What does B stand for in a genotype?

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.

Which is an example of a homozygous dominant genotype?

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.