Traits & Punnett Squares

Front

What is a dominant trait?

Back

A trait that hides another.

Front

What is a recessive trait?

Back

A trait that is hidden.

Front

What is a genotype?

Back

The genetic makeup of an organism.

Front

What is a phenotype?

Back

The physical appearance or observable characteristics of an organism.

Front

How many pairs of chromosomes do humans have?

Back

23 pairs.

Front

What does a Punnett Square show?

Back

The possible genetic combinations from a cross between two parents.

Front

What is the purpose of a Punnett Square?

Back

To predict the probability of offspring inheriting particular traits.

Front

What does 'Dd' represent in genetics?

Back

A heterozygous genotype, where 'D' is dominant and 'd' is recessive.

Front

What does 'dd' represent in genetics?

Back

A homozygous recessive genotype.

Front

If one box in a Punnett Square represents 25%, how much do 2 boxes represent?

Back

50%.