1. Thursday 12/3/15 Learning Goals:
Model the inheritance of traits with paper pets
Warm-up:
What is the difference between phenotype and genotype?
Homework:
Paper Pet Project due on Monday
Chapter 4 Sections 3 & 4 on Wednesday 12/9

2. Dominant = Dark color Recessive = Light color
Mom
Dad
Possible offspring genotypes and phenotypes dd
 dd (100%) = light DD
 DD (100%) = dark
 Dd (100%) = dark Dd
 DD (50%) or Dd (50%) = all dark
 Dd (50%) = dark, dd (50%) = light
 DD (25%), Dd (50%) = dark (75%)
dd (25%) = light

3. Male XY
Has a tie.
Female XX
Has a bow.
Possible Traits
Dominant
Recessive
Color – “D”
Dark
Light
Eyes – “R”
Round
Square
Nose – “T”
Triangular
Oval
Teeth – “S”
Pointed
Hair - “C”
Curly
Straight