Punnett Square Practice

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

• 50 % Brown Hair and 50% Blond Hair

• 25 % Brown Hair and 75% Blond Hair

• 75 % Brown Hair and 25% Blond Hair

• 0% Brown Hair and 100% Blond Hair

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

In pea plants: T=tall t=short

What ratio of the offspring could be short?

• 0 in 4

• 1 in 4

• 2 in 4

• 4 in 4

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

In a certain species of plant, the color purple (P) is dominant to the color white (p).

According to the Punnett Square, what is the probability of an offspring being purple?

• 25%

• 0%

• 100%

• 50%

Tags

NGSS.HS-LS3-3

What is the yellow seed genotype?

• aa
• Aa
• AA
• AA or Aa

Tags

NGSS.HS-LS3-1

What genotype would go in box 2?

• BB
• Bb
• bb

Tags

NGSS.HS-LS3-1

What is the probability of heterozygous offspring?

• 0%

• 100%

• 50%

• 25%

Tags

NGSS.HS-LS3-3

What allele combination should go in the missing box?

• AA
• Aa
• aa
• none of these

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What are the possible genotypes for this cross?

• TT = 25% Tt= 50% tt=25%

• all tall

• TT= 75% tt = 25%

• Tt = 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

What genotype would go in box 4?

• BB

• Bb

• bb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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

• AA, Aa, aa

• AA only

• Aa only

• aa only

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3