Incomplete Dominance

1
Incomplete Dominance

• Sometimes, depending on the way the different
  proteins from each allele interact genes dont
  completely dominate the alternate allele
• Mendel, studying four oclocks, gave up genetic
  research because of this fact.

2
Example

• Some species of flowers when you cross a red
  petal with a white petal produce a pink petal.
• Red R WhiteR
• Possible genotypes
• Red RR White RR Pink RR

3
Cross an incompletely dominant pink flower with a
red flower.
R R
R RR RR
R RR RR

• 5/6.
• Red 2/4
• White 0/4
• Pink 2/4

• 1. Dom Red White Blend Pink Hybrid
• 2. R red R white RR pink
• 3. Mom RR Dad RR
• 4.

R
R
R
R