OL Genetics Flashcard #2 Review

Front

What is the genotype of a plant with yellow pods if green pod color (G) is dominant?

Back

gg

Front

What percentage of offspring will have purple flowers when a Pp plant is crossed with another Pp plant?

Back

75%

Front

What is an allele that always shows up in an organism when present?

Back

Dominant

Front

In a Punnett square, what genotype is represented by tt if T = tall and t = short?

Back

tt

Front

What percentage of offspring will be red when a homozygous dominant red plant is crossed with a recessive white plant?

Back

100%

Front

Define 'dominant allele'.

Back

An allele whose trait always shows up in an organism when the allele is present.

Front

Define 'recessive allele'.

Back

An allele whose trait is masked in the presence of a dominant allele.

Front

What does a Punnett square illustrate?

Back

The possible genetic combinations from a cross between two organisms.

Front

What is the phenotype of a plant with genotype Gg?

Back

Green pods (since G is dominant).

Front

If a plant has the genotype TT, what is its phenotype?

Back

Tall (since T is dominant).