Free Printable Genetics vocabulary and application entrance/exit

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Name

Class

Date

A trait that can mask (hide, cover) the recessive trait.

Recessive

Dominant

Genotype

Phenotype

Same alleles (versions) of a trait: pp or PP

Gene

Heterozygous

Trait

Homozygous

Different alleles (versions) of a trait: Pp

Heterozygous

Genotype

Phenotype

Homozygous

Gregor Mendel crossed a true-breeding tall plant (TT) with a true-breeding short plant (tt). What are the possible phenotypes for the offspring?

All tall

All short

Ratio of 1 tall : 1 short

Ratio of 2 tall : 1 short

In snap peas, yellow flowers (R) are dominant to white flowers (r). In the cross RR × Rr, what would be the genotypic ratio of the F1 generation?

1:1

1:2

1:3

3:1

100 %

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