LS.3 Review

Cross Aa with aa what percent of the offspring will be homozygous recessive?

• 0%

• 25%

• 50%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A male bird with a long beak (Aa) and a female bird with a short beak (aa) mate. What phenotype does the male bird have this problem?

• Aa

• Short beak

• aa

• Long beak

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A male shark with sharp teeth (Tt) mates with a female shark with sharp teeth (TT). What is the genotype of the female shark?

• Sharp teeth

• Dull teeth

• TT

• Tt

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What genotype would go in box 4?

• BB

• Bb

• bb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Rr and RR always will both show up as the _____________ trait because there is a capital letter in both genotypes.

• dominant

• recessive

Which of the following genotypes are homozygous? (select all that apply)

• Bb

• BB

• bb

• Tt

What percent of the offspring will be homozygous?

• 0%

• 100%

• 50%

• 25%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

What are the possible phenotypes of the offspring? (A-Brown hair; a-blond hair)

• AA, Aa, aa

• Brown hair and blond hair

• Brown hair only

• Aa, aa

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What percent of this offspring will be recessive?

• 50%

• 75%

• 25%

• 0%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A brown cat (Bb) has a litter of kittens with a white cat (bb). What percent of their kittens will be brown?

• 0%

• 25%

• 50%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3