Is BB homozygous or heterozygous?

Is BB homozygous or heterozygous?

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.

What is the difference between homozygous and homozygote?

Homozygote, an organism with identical pairs of genes (or alleles) for a specific trait. If both of the two gametes (sex cells) that fuse during fertilization carry the same form of the gene for a specific trait, the organism is said to be homozygous for that trait.

Is TT a purebred?

Everyone in Squidward’s family has light blue skin, which is the dominant trait for body color in his hometown of Squid Valley. His family brags that they are a “purebred” line. He recently married a nice girl who has light green skin, which is a recessive trait.

Is TT purebred or hybrid?

In the first of Mendel’s experiments, a tall purebred pea plant (TT) was crossed with a short purebred pea plant (tt). The result of this cross was all tall hybrid pea plants (Tt).

Is FF purebred or hybrid?

Wilma is believed to be heterozygous for her round eye shape, while Wilbur’s family brags that they are a pure line. Complete the Punnett square to show the possibilities that would result if SpongeWilma and SpongeWilbur had children.

Which disease is an autosomal recessive disorder?

Examples of autosomal recessive disorders include cystic fibrosis, sickle cell anemia, and Tay-Sachs disease.

How do you know if its autosomal dominant or recessive?

Reading a pedigree

1. Determine whether the trait is dominant or recessive. If the trait is dominant, one of the parents must have the trait.
2. Determine if the chart shows an autosomal or sex-linked (usually X-linked) trait. For example, in X-linked recessive traits, males are much more commonly affected than females.

Which of the following is an autosomal dominant disease?

Examples of autosomal dominant diseases include Huntington disease, neurofibromatosis, and polycystic kidney disease.