Notes: Punnett squares (pg 8)
Notes: Punnett squares (pg 8)• Punnett square = Diagram used to predict the  possible offspring of a cross
Notes: Punnett squares (pg 8)• Punnett square = Diagram used to predict the  possible offspring of a cross• Created by Reg...
Notes: Punnett squares (pg 8)• Punnett square = Diagram used to predict the  possible offspring of a cross• Created by Reg...
• Genotype frequency: 25% BB, 50% Bb, 25% bb
• Genotype frequency: 25% BB, 50% Bb, 25% bb• Phenotype frequency: 75% Black, 25% White
Output (pg 9)• Guinea pig diagram• Tape as close to the top as you can
Example Problem (pg 8)• In guinea pigs, black fur (B) is dominant to white  fur (b). A heterozygous black female mates wit...
Output (pg 9)• Make up a problem that requires a Punnett  square to solve it. Write it on pg 9. Then trade  interactive no...
Notes punnett squares
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Notes punnett squares

  1. 1. Notes: Punnett squares (pg 8)
  2. 2. Notes: Punnett squares (pg 8)• Punnett square = Diagram used to predict the possible offspring of a cross
  3. 3. Notes: Punnett squares (pg 8)• Punnett square = Diagram used to predict the possible offspring of a cross• Created by Reginald Punnett
  4. 4. Notes: Punnett squares (pg 8)• Punnett square = Diagram used to predict the possible offspring of a cross• Created by Reginald Punnett• The alleles of one parent are written across the top of the square (one allele per box) and those of the other parent are written on the side
  5. 5. • Genotype frequency: 25% BB, 50% Bb, 25% bb
  6. 6. • Genotype frequency: 25% BB, 50% Bb, 25% bb• Phenotype frequency: 75% Black, 25% White
  7. 7. Output (pg 9)• Guinea pig diagram• Tape as close to the top as you can
  8. 8. Example Problem (pg 8)• In guinea pigs, black fur (B) is dominant to white fur (b). A heterozygous black female mates with a white male. What are the genotype and phenotype ratios of the offspring?
  9. 9. Output (pg 9)• Make up a problem that requires a Punnett square to solve it. Write it on pg 9. Then trade interactive notes with your neighbor and have them try to solve it

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