Punnett Squares

Front

What is the term for the physical appearance of an organism?

Back

Phenotype

Front

What do the combinations Aa, DD, bB, and yy represent?

Back

Genotypes

Front

Which of the following is an example of a homozygous recessive allele? (Tt, tt, TT, t)

Back

tt

Front

What do AA and Aa genotypes always express?

Back

Dominant traits

Front

What does genotype refer to?

Back

The possible combination of alleles in a gene

Front

What is the term for an organism with two identical alleles for a trait?

Back

Homozygous

Front

What is the term for an organism with two different alleles for a trait?

Back

Heterozygous

Front

If a trait is dominant, what will be the phenotype of an organism with at least one dominant allele?

Back

The dominant phenotype will be expressed.

Front

What is the expected phenotypic ratio in a monohybrid cross of two heterozygous parents?

Back

3:1

Front

What is the expected genotypic ratio in a monohybrid cross of two heterozygous parents?

Back

1:2:1