Heredity and Punnett Squares

Front

What is the probability of a blue-eyed baby from two brown-eyed parents (Bb)?

Back

25%.

Front

What phenotype do AA and Aa always show?

Back

Dominant.

Front

Which letter represents the dominant allele for tongue rolling?

Back

T.

Front

What complex molecule carries genetic information in an organism?

Back

DNA.

Front

What is hair color an example of?

Back

Phenotype.

Front

What is the term for the genetic makeup of an organism?

Back

Genotype.

Front

What is the difference between genotype and phenotype?

Back

Genotype is the genetic makeup, while phenotype is the observable traits.

Front

What does a Punnett square illustrate?

Back

The possible genetic combinations from a cross between two parents.

Front

If a trait is recessive, what must be true for it to be expressed?

Back

The organism must have two recessive alleles.

Front

What does the term 'homozygous' mean?

Back

Having two identical alleles for a particular gene.