Punnett Squares 24

Front

What is a genotype?

Back

A genotype is the genetic makeup of an organism, represented by the alleles it possesses.

Front

What does homozygous dominant mean?

Back

Homozygous dominant refers to having two identical dominant alleles for a trait, such as AA.

Front

What is the phenotype of an organism?

Back

The phenotype is the observable physical or biochemical characteristics of an organism, determined by its genotype.

Front

What is a Punnett Square?

Back

A Punnett Square is a diagram used to predict the outcome of a genetic cross by showing the possible combinations of alleles.

Front

In the cross BbTt x BBtt, what does Bb represent?

Back

Bb represents a heterozygous genotype for fur color, where B is the dominant allele for black fur.

Front

What is the expected percentage of offspring with black fur from the cross BbTt x BBtt?

Back

50% of the offspring will have black fur.

Front

Define codominance.

Back

Codominance is a genetic scenario where both alleles in a heterozygote are fully expressed, resulting in a phenotype that is neither dominant nor recessive.

Front

What is incomplete dominance?

Back

Incomplete dominance is a genetic situation where the heterozygous phenotype is a blend of the two homozygous phenotypes.

Front

How does incomplete dominance differ from codominance?

Back

In incomplete dominance, the heterozygous phenotype is a mix, while in codominance, both traits are fully expressed.

Front

What is the genotype for Roan color in cattle?

Back

The genotype for Roan color is RW, where R is red and W is white.