Dihybrid Practice

How many combinations of genotypes will there be?

• 2

• 4

• 6

• 9

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-3

What fraction of offspring will have both green eyes and small ears?

• 1/4

• 1/2

• 3/4

• 4/4

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

What percentage of offspring will have both striped fur and short tails?

• 12.5%

• 25%

• 37.5%

• 50%

Tags

NGSS.HS-LS3-3

What fraction of offspring will have the genotype BBEe?

• 1/4

• 2/16

• 1/8

• 4/16

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What fraction of offspring will have the genotype TtBb?

• 1/4

• 1/2

• 3/4

• 1/16

Tags

NGSS.HS-LS3-3

NGSS.HS-LS4-3

What percentage of offspring will be homozygous recessive for both fur color and eye color?

• 6.25%

• 12.5%

• 25%

• 37.5%

Tags

NGSS.HS-LS3-3

What fraction of offspring will have striped fur?

• 1/2

• 1/16

• 1/4

• 1/12

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

What is the expected phenotypic ratio in the offspring of a dihybrid cross between two heterozygous parents (AaBb x AaBb)?

• 9:3:3:1

• 3:1

• 1:1

• 1:2:1

In a dihybrid cross, what fraction of the offspring will be homozygous recessive for both traits?

• 1/16

• 1/4

• 1/8

• 1/2

If a plant with genotype AaBb is crossed with a plant with genotype aabb, what fraction of the offspring will have the genotype AaBb?

• 1/4

• 1/2

• 1/8

• 1/16

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3