Genetics and Heredity

Front

What is a dominant gene?

Back

A dominant gene is a stronger gene that always shows itself in an organism's traits.

Front

What is an inherited trait?

Back

An inherited trait is a characteristic that is passed from parents to their offspring.

Front

What is a recessive gene?

Back

A recessive gene is a weaker gene that only shows its traits when two copies are present.

Front

What does it mean to have a widow's peak?

Back

A widow's peak is a V-shaped point in the hairline, which is a dominant trait.

Front

What are chromosomes?

Back

Chromosomes are structures found in the nucleus of a cell that contain DNA.

Front

Where are chromosomes found in a cell?

Back

Chromosomes are found in the nucleus of the cell.

Front

What is a hybrid organism?

Back

A hybrid organism has two different alleles for a trait, one from each parent.

Front

What is a purebred organism?

Back

A purebred organism has two identical alleles for a trait.

Front

What is the difference between dominant and recessive traits?

Back

Dominant traits are expressed when at least one dominant allele is present, while recessive traits are only expressed when two recessive alleles are present.

Front

What is an example of a dominant trait in pea plants?

Back

An example of a dominant trait in pea plants is yellow pea seeds.