Genetics and Punnett Squares Test Retake

Front

What does Aa represent in genetics?

Back

Heterozygous (hybrid)

Front

What is a phenotype?

Back

The physical trait of an organism.

Front

What is the expression of a trait?

Back

Phenotype; it refers to the physical appearance of an organism.

Front

What is a dominant trait?

Back

A trait that is expressed when at least one dominant allele is present, such as yellow pea seeds.

Front

What does aa always show up as?

Back

Recessive trait.

Front

What is a genotype?

Back

The genetic makeup or code of an organism.

Front

What is the difference between homozygous and heterozygous?

Back

Homozygous means having two identical alleles for a trait, while heterozygous means having two different alleles.

Front

What is a Punnett Square used for?

Back

To predict the genetic outcomes of a cross between two organisms.

Front

What does it mean if a trait is recessive?

Back

It only shows up in the phenotype if two recessive alleles are present.

Front

What is an allele?

Back

An alternative form of a gene that can produce different traits.