Punnett Square

Front

A characteristic that an organism can pass on to its offspring through its genes is ___________

Back

Trait

Front

In a certain species of plant, the color purple (P) is dominant to the color white (p). What is the probability of an offspring being purple according to the Punnett Square?

Back

100%

Front

Punnett squares can be used to predict the probability of ___________

Back

having an inherited disease or a genetically determined physical trait

Front

What is called when an organism has two different alleles for a trait, such as Tt or Rr?

Back

Heterozygous

Front

An organism’s physical appearance, or visible traits, is called ___________

Back

Phenotype

Front

What do we call the genetic makeup of an organism, represented by letters?

Back

Genotype

Front

If an organism has two identical alleles for a trait, such as TT or tt, it is called ___________

Back

Homozygous

Front

In a Punnett Square, what does each box represent?

Back

The possible genotypes of the offspring.

Front

What is the term for the different forms of a gene?

Back

Alleles

Front

If a trait is dominant, what does that mean?

Back

It means that the trait will be expressed even if only one dominant allele is present.