Genetics Test Review

heterozygous

• Bb

• BB

• bb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

homozygous dominant trait

• Bb

• BB

• bb

homozygous recessive trait

• BB

• bb

• Bb

Brown eyes are dominant to blue eyes. Cross heterozygous brown eyes with homozygous blue eyes.

• Ee x Ee

• EE x ee

• Ee x ee

• Ee x EE

Tags

NGSS.HS-LS3-2

Brown hair is dominant to red hair. Cross homozygous brown hair with homozygous red hair.

• Hh x Hh

• HH x He

• Hh x hh

• HH x hh

Tags

NGSS.HS-LS3-1

Round peas are dominant to wrinkled peas. Cross heterozygous round pea with heterozygous round pea.

• Rr x Rr

• RR x rr

• Rr x rr

• Rr x RR

Tags

NGSS.HS-LS3-2

Codominance

Brown cows and white cows are both dominant. Cross a brown cow with a spotted cow.

• BB x WW

• BB x BW

• BW x BW

• BB x BB

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Incomplete Dominance

Red flower are dominant to white flowers. Cross a red flower with a pink flower.

• RR x Rr

• RR x rr

• Rr x Rr

• Rr x rr

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Brown eyes are dominant to green eyes. What is the percent chance a child will have green eyes if mom is heterozygous brown eyes and dad is also heterozygous for brown eyes.

• 0%

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

Blonde hair is dominant to red hair. What is the percent chance a child will have red hair if the mom is heterozygous for blonde hair and dad is homozygous for red hair.

• 0%

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1