genetics, punnett squares, heredity

Front

What is genetics?

Back

Genetics is the study of heredity and the variation of inherited characteristics.

Front

What is a Punnett Square?

Back

A Punnett Square is a diagram used to predict the outcome of a genetic cross by showing the possible combinations of alleles.

Front

What does it mean for an allele to be dominant?

Back

A dominant allele is one that expresses its trait even when only one copy is present in the genotype.

Front

What does it mean for an allele to be recessive?

Back

A recessive allele is one that only expresses its trait when two copies are present in the genotype.

Front

How do you represent a dominant allele?

Back

A dominant allele is represented by a capital letter.

Front

How do you represent a recessive allele?

Back

A recessive allele is represented by a lowercase letter.

Front

In a cross between Tt and Tt, what is the probability of getting a tall plant?

Back

75% probability of getting a tall plant.

Front

In a cross between Tt and Tt, what is the probability of getting a short plant?

Back

25% probability of getting a short plant.

Front

What is the genotype of a plant that is homozygous dominant for tallness?

Back

The genotype is TT.

Front

What is the genotype of a plant that is homozygous recessive for shortness?

Back

The genotype is tt.