Dihybrid cross steps

Parent 1 is heterozygous for both pea color and shape. Parent 2 is heterozygous for both pea color and shape.

(What do you do first to determine to possible offspring's?)

• Foil the genotypes of the parents to get the gametes.

• Use the genotypes to fill out the Dihybrid cross

• The gametes are just the parent genotypes doubled

• The dominant traits will mean that all the gametes will be dominant.

Parent 1 is heterozygous for both pea color and shape. Parent 2 is heterozygous for both pea color and shape.

(What does the "F" in Foil stand for?)

• Free genotype of parents

• Combine the first letter of both the alleles of the parents.

• First letter in alphabet of the parents that

• Final letters of the genotypes of the parents.

Parent 1 is heterozygous for both pea color and shape. Parent 2 is heterozygous for both pea color and shape.

(What does the "O" in Foil stand for?)

• Onset genotype of parents

• Outer letters of the alphabet.

• Outside letters of the gametes

• Combine the outside letters of both the parent alleles.

Parent 1 is heterozygous for both pea color and shape. Parent 2 is heterozygous for both pea color and shape.

(What does the "I" in Foil stand for?)

• interesting genotype of parents

• Inner most letters of the alphabet.

• inside letters of the gametes

• Combine the inside letters of both the parent alleles.

Parent 1 is heterozygous for both pea color and shape. Parent 2 is heterozygous for both pea color and shape.

(What does the "L" in Foil stand for?)

• Large genotype of parents

• Last letters of the alphabet.

• Combine the last letters of both the parent alleles.

• last letters of the gametes

Parent 1 is heterozygous for both pea color and shape. Parent 2 is heterozygous for both pea color and shape.

What are the gametes of both of the parents?

• Ea, ea, ea, EA

• EA, Ea, eA, ea

• ea, ea, eA, eA

• eA, eA, EA, EA

Parent 1 is heterozygous for both pea color and shape. Parent 2 is heterozygous for both pea color and shape.

What is the missing gamete for parent 1?

• eA

• ea

• EA

• Ea

Parent 1 is heterozygous for both pea color and shape. Parent 2 is heterozygous for both pea color and shape.

What is the missing gamete for parent 2?

• eA

• ea

• EA

• Ea

Parent 1 is heterozygous for both pea color and shape. Parent 2 is heterozygous for both pea color and shape.

What should the genotype be for the box with the "?" ?

• EEAa

• EeAa

• eeAa

• eeaa

Parent 1 is heterozygous for both pea color and shape. Parent 2 is heterozygous for both pea color and shape.

What should the genotype be for the box with the "?" ?

• EEAa

• EeAa

• eeAa

• eeaa