Punnett Squares

Front

BB, Bb, and bb are examples of _________________

Back

Genotype

Front

What is the phenotype of the offspring? (A-Brown hair; a-blond hair)

Back

75 % Brown Hair and 25% Blond Hair

Front

What are the possible combinations of a pea plant with the alleles PP and a male pea plant with the alleles pp?

Back

all Pp

Front

Homozygous or heterozygous? BB

Back

Homozygous

Front

Genotype refers to the ...

Back

the possible combination of alleles in a gene

Front

What does phenotype mean?

Back

The physical expression of the genes.

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 only expresses its trait when two copies are present.

Front

What does it mean if an organism is heterozygous?

Back

It has two different alleles for a trait.

Front

What does it mean if an organism is homozygous?

Back

It has two identical alleles for a trait.