Genetics Review

What are the genotypes for a male that is a tongue roller, has no widow's peak, and has attached earlobes?

• TT or Tt, hh, EE

• Tt, Hh, ee

• TT, hh, Ee

• Tt, hh, ee

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What are the genotypes for a female that is a non-tongue roller, is heterozygous for widow’s peak, and has unattached earlobes?

• tt, Hh or HH, EE or Ee

• tt, HH, Ee or EE

• tt, Hh, Ee or EE

• TT, Hh, Ee or EE

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Two people with unattached earlobes have a child with attached earlobes. Select the correct genetic cross that shows the parents genotypes.

• EE x Ee

• Ee x Ee

• Ee x EE

• ee x ee

Tags

NGSS.HS-LS3-1

Cross two heterozygous tongue rollers, what is the genotypic ratio?

• 1:2:1

• 3:1

• 2:2

• 1:1:1:1

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

Cross two heterozygous tongue rollers, what is the phenotypic percentage?

• 25%, 25%, 25%, 25%

• 50%, 50%

• 75%, 25%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

Use the letter B, cross a female that is heterozygous for dark eyes with a male that is homozygous for light eyes. The genotype of the female is __________.

• Dark Eyes

• BB

• Bb

• bb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Use the letter B, cross a female that is heterozygous for dark eyes with a male that is homozygous for light eyes. The genotype of the male is __________.

• Light eyes

• BB

• Bb

• bb

Tags

NGSS.HS-LS3-1

Use the letter B, cross a female that is heterozygous for dark eyes with a male that is homozygous for light eyes. What percentage of the offspring will have BB genotype?

• 0%

• 25%

• 50%

• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

Use the letter B, cross a female that is heterozygous for dark eyes with a male that is homozygous for light eyes. What percentage of the offspring will have light eyes?

• 0%

• 25%

• 50%

• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Use the letter B, cross a female that is heterozygous for dark eyes with a male that is homozygous for light eyes. What percentage of the offspring will have dark eyes?

• 0%

• 25%

• 50%

• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3