Genetics Review

In dogs, the dominant allele (B) produces black hair and the recessive allele (b) produces brown hair. Based on the Punnett square above, what is the % chance the offspring will have BLACK hair?

• 0%

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-3

In dogs, the dominant allele (B) produces black hair and the recessive allele (b) produces brown hair. Based on the Punnett square above, what is the % chance the offspring will have BROWN hair?

• 0%

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

In dogs, the dominant allele (B) produces black hair and the recessive allele (b) produces brown hair. Based on the Punnett square above, what is the % chance the offspring will have BLACK hair, but carry the allele for brown hair?

• 0%

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS4-3

In plants, the dominant allele (T) produces tall plants and the recessive allele (t) produces short plants. Based on the Punnett square above, what fraction of the plants will be tall?

• 0/4

• 1/4

• 2/4

• 3/4

• 4/4

In plants, the dominant allele (T) produces tall plants and the recessive allele (t) produces short plants. Based on the Punnett square above, what fraction of the plants will be short?

• 0/4

• 1/4

• 2/4

• 3/4

• 4/4

In monsters, the dominant allele (H) produces horns and the recessive allele (h) does not produce horns. What are the possible genotypes of a monster with horns? (There may be more than 1 answer)

• HH

• Hh

• hh

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

When making a Punnett square, which parent do you put on the TOP?

• Father

• Mother

In dinosaurs, height a skin type are linked. The dominant allele (R) produces rough skin and the recessive allele (r) produces smooth skin, and the dominant allele (T) produces tall dinosaurs while the recessive (t) produces short dinosaurs. Using the dihybrid cross above, what fraction of the dinosaurs will be tall with rough skin?

• 0/16

• 3/16

• 9/16

• 16/16

Tags

NGSS.HS-LS3-2

R = rough skin

r = smooth skin

T = tall

t = short

Based on the dihybrid cross above, what fraction of the dinosaurs have smooth skin and are short?

• 0/16

• 1/16

• 3/16

• 9/16

R = rough skin

r = smooth skin

T = tall

t = short

Based on the dihybrid cross above, what fraction of the dinosaurs have smooth skin and are tall?

• 0/16

• 3/16

• 9/16

• 16/16