Heredity Review

Front

How many alleles does a person carry for a trait?

Back

2

Front

This trait is hidden whenever the dominant allele is present.

Back

Recessive allele

Front

The only way to get O blood:

Back

Inherit O alleles from both parents.

Front

What is a gene?

Back

A piece of DNA on a chromosome that codes for a trait.

Front

What is the only genotype that shows the RECESSIVE Phenotype?

Back

gg

Front

What is a dominant allele?

Back

An allele that expresses its trait even in the presence of a recessive allele.

Front

What is a recessive allele?

Back

An allele that is masked by the presence of a dominant allele.

Front

What is a genotype?

Back

The genetic makeup of an organism, represented by alleles.

Front

What is a phenotype?

Back

The observable characteristics or traits of an organism.

Front

What is codominance?

Back

A situation in which both alleles in a heterozygote are fully expressed.