Punnett Squares Practice

Front

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

Back

Phenotype

Front

In a heterozygous genotype, which allele takes over in the phenotype?

Back

Dominant

Front

In a certain species of plant, if purple (P) is dominant to white (p), what is the probability of an offspring being purple from a cross of two heterozygous parents?

Back

100%

Front

What is the ratio of offspring that will be homozygous recessive for the trait of tallness from a cross of Tt x Tt?

Back

0 in 4

Front

What are Aa, DD, Ba, and yy examples of?

Back

Genotypes

Front

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

Back

Genotype

Front

If a plant has the genotype Tt, what are the possible gametes it can produce?

Back

T and t

Front

What does it mean if an organism is homozygous for a trait?

Back

It has two identical alleles for that trait.

Front

What does it mean if an organism is heterozygous for a trait?

Back

It has two different alleles for that trait.

Front

In a Punnett Square, what does each box represent?

Back

A possible genotype of the offspring.