punnet square

In pea plants, the tall allele is dominant to the short allele. What key would demonstrate this?

• Tall = T
  Short = S
• Tall = T
  Short = t
• Tall = t
  Short = T
• Tall = TT
  Short = tt

What genotype would go in box 2?

• BB
• Bb
• bb

What is the probability of heterozygous offspring?

• 0%

• 100%

• 50%

• 25%

What allele combination should go in the missing box?

• AA
• Aa
• aa
• none of these

If T=tall and t=short

What is the ratio for short phenotype in this cross?

• 0:4

• 1:4

• 2:4

• 3:4

G = green, g = yellow
The genotype for a yellow plant is...

• GG
• Gg
• gg
• all of the choices result in yellow

Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?

• 0 %
• 25%
• 50%
• 75%

What you see, or the physical appearance.

• Genotype
• Phenotype
• Homozygous
• Heterozygous

What are the possible genotypes for this cross?

• TT = 25% Tt= 50% tt=25%

• all tall

• TT= 75% tt = 25%

• Tt = 100%

What genotype would go in box 1?

• BB

• Bb

• bb