Monohybrid Crosses Practice

Is Bb dominant or recessive?

• dominant

• recessive

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is the genotype for wrinkled?

• RR

• rr

• Rr

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is true about these two brothers that have brown eyes?

One has genotype BB the other Bb.

• they have same phenotype and genotype

• they have same phenotype but different genotypes

Tags

NGSS.HS-LS3-1

What ratio of the offspring from the cross shown will be recessive for the trait of tallness?

Dominant: AA or Aa

Recessive: aa

• 0 in 4

• 1 in 4

• 2 in 4

• 4 in 4

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is the genotype of a person who is frowning?

• EE

• Ee

• ee

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is the genotype of a person who has freckles? (2)

• FF

• ff

• Ff

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is the genotype of a person who has dimples?

• Dd

• DD

• dd

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following is a homozygous genotype? (Select ALL that apply)

• AA

• Aa

• aa

Is bb dominant or recessive?

• dominant

• recessive

What are the possible genotypes for this cross?

• TT = 25% Tt= 50% tt=25%

• tt = 100%

• TT= 75% tt = 25%

• Tt = 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2