Test Crosses

How much of the offspring pictured have a heterozygous result?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

In monsters, blue hair is dominant to green hair. Which genotype(s) will produce blue hair? (Select ALL that apply)

• BB

• Bb

• bb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Is Bb dominant or recessive?

• dominant

• recessive

Tags

NGSS.HS-LS3-1

In the punnett square, what is the probability for white fur?

• 0% (0/4)

• 25% (1/4)

• 50% (2/4)

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

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

In hinkypunks (a made-up creature), having 4 tentacles are dominant over 5 tentacles. Which genotype(s) would produce a hinkypunk with 4 tentacles? (Select ALL that apply)

• HH

• Hh

• hh

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Heterozygous is when...

• the alleles are the same

• the alleles are different

• the alleles are absent

• the alleles are present

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is the genotypic ratio of the offspring?

• 3 AA : 1 aa

• 1 AA : 3 aa

• 1 AA : 2 Aa : 1 aa

• 2 AA : 2 aa

Tags

NGSS.HS-LS3-2

Which of the following alleles is homozygous recessive?

• Tt

• tt

• TT

• T