What is the genotype of a homozygous black guinea pig?

What is the genotype of a homozygous black guinea pig?

BB
To begin, use the alleles to determine the genotypes of each parent: homozygous black guinea pig: BB. homozygous white guinea pig: bb.

When a homozygous dominant black guinea pig is crossed with a brown recessive guinea pig What color will the offspring be?

The allele for a black coat is dominant, so the parent guinea pigs are black. But if one of their offspring receives the two recessive brown alleles, it will have a brown coat.

What is the genotype of the black guinea pig?

In Guinea pigs, the genotype (BB) is black, and the genotype (bb) is white color, and (Bb) is grey color, The gene (Bland bare sex-linked.

What kind of cross might tell you if a black guinea pig is BB or BB?

A cross with a white guinea pig (bb); if a white pig is born the black pig had to be Bb. What kind of cross might tell you if a black guinea pig is BB or Bb? Why? No; Josie’s parents may not have learned to play an instrument, but Josie may find out she has the ability to play if she has the chance to learn.

What’s an organism’s genotype?

A genotype is an individual’s collection of genes. The term also can refer to the two alleles inherited for a particular gene. The genotype is expressed when the information encoded in the genes’ DNA is used to make protein and RNA molecules.

What does a homozygous dominant and homozygous recessive genotype look like?

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. Finally, the genotype of an organism with two recessive alleles is called homozygous recessive. In the eye color example, this genotype is written bb.

How is a homozygous recessive trait written?

When a particular gene has identical alleles (versions) of chromosomes inherited from both parents, the gene is homozygous. A homozygous trait is referred to by two capital letters (XX) for a dominant trait, and two lowercase letters (xx) for a recessive trait.

Is a guinea pig heterozygous or homozygous?

In guinea pigs, the allele for a rough coat (R) is dominant over the allele for a smooth coat (r). A heterozygous guinea pig (Rr) and homozygous recessive guinea pig (rr) have a total of nine offspring. The Punnett square for this cross shows a 50 percent chance that any particular offspring will have a smooth coat.

How do you know if its homozygous or heterozygous?

Because an organism has two sets of chromosomes, it usually only has two options to choose from when determining phenotype. If an organism has identical genes on both chromosomes, it is said to be homozygous. If the organism has two different alleles of the gene it is said to be heterozygous.

What is homozygous for a trait?

Homozygous is a genetic condition where an individual inherits the same alleles for a particular gene from both parents.