REVIEW - Inheritance of traits

Front

What is a dominant trait?

Back

A dominant trait is a characteristic that is expressed in an individual even when only one copy of the allele is present.

Front

How can you identify the dominant trait in your family?

Back

By observing common physical characteristics and analyzing family history.

Front

What is a phenotype?

Back

A phenotype is the observable physical or biochemical characteristics of an organism, as determined by both genetic makeup and environmental influences.

Front

What is an example of a phenotype?

Back

Tall (as a physical characteristic).

Front

What is a dominant allele?

Back

An allele that expresses its trait in the presence of another allele.

Front

What is a recessive allele?

Back

An allele that only expresses its trait when paired with another recessive allele.

Front

What does heterozygous mean?

Back

An individual is heterozygous when they have two different alleles for a particular gene.

Front

What is an example of a heterozygous dominant genotype?

Back

Aa.

Front

In a heterozygous individual, which trait will be expressed if one allele is dominant and the other is recessive?

Back

The dominant trait will be expressed.

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic makeup of an organism, while phenotype refers to the observable traits.