Punnetts SquareHealth Occ

VocabularyAlleles: one from each parent, how they

interact determines the physical characteristics of the person. EX: shape of the ear.

Homozygous: alleles are identical

Heterozygous: alleles are different

Genotype: “gene” BB, Bb, bb

Phenotype: “physical” Brown eyes, blue eyes

1) When 2 homozygous dominant creatures mate:

B = Big eyesbb = small eyes

2) When a homozygous dominant creature mates with a homozygous recessive creature

B = Big eyesbb = small eyes

3) When a homozygous dominant creature mates with a heterozygous creature

B = Big eyesbb = small eyes

4) When 2 homozygous recessive creatures mate:B = Big eyesbb = small eyes

5) When a homozygous recessive creature mates with a heterozygous creature

B = Big eyesbb = small eyes

6) When 2 heterozygous creatures mate

B = Big eyesbb = small eyes