Punnett Square Practice

Front

What are the possible phenotype(s) of the offspring? (A-Brown hair; a-blond hair)

Back

75 % Brown Hair and 25% Blond Hair

Front

What is a Punnett Square?

Back

A tool scientists use to determine all the possible genotypes for offspring.

Front

Homozygous is when...

Back

the alleles are the same.

Front

What are the possible genotypes of the offspring? (A-Brown hair; a-blond hair)

Back

AA, Aa, aa.

Front

What genotype would go in box 1?

Back

BB.

Front

What does heterozygous mean?

Back

The alleles are different.

Front

What is the purpose of a Punnett Square?

Back

To predict the probability of offspring genotypes.

Front

If a parent has genotype Aa, what alleles can they pass on?

Back

A or a.

Front

What is the phenotype of a homozygous dominant individual (AA)?

Back

Brown hair.

Front

What is the phenotype of a homozygous recessive individual (aa)?

Back

Blond hair.