PUNNETT REVIEW LESSON

PUNNETT REVIEW LESSON

Punnett Square - fill in

-the letters on TOP pull directly down into the two boxes below them

-the letters to the LEFT are pulled directly across to the boxes to the right-hand side

Multiple Choice

Fill in the missing square.

• Gg

• GG

Multiple Choice

Fill in the missing square.

• Bb

• bb

Genotype

Homozygous = same

Heterozygous = different

Dominant = capital letter, stronger trait

Recessive = lower case letter, weaker trait

Multiple Choice

Describe the genotype.

Homozygous or Heterozygous

Dominant or Recessive

Homo = same

Hetero = different

• = Heterozygous,

  Dominant

• = Homozygous,

  Recessive

Multiple Choice

Describe the genotype.

Homozygous or Heterozygous

Dominant or Recessive

• = Homozygous,

  Dominant,

• = Homozygous, Recessive

Percentages

• 1 BOX = 25%

• 2 BOXES = 50%

• 3 BOXES = 75%

• 4 BOXES = 100%

Multiple Choice

What percentage are Bb?

• 50%

• 25%

Multiple Choice

What percentage are gg?

• 25%

• 50%