1. Reminders Unit 8 Exam- Tuesday, March, 21st
Last day to turn in ANY Unit 7 Work- Tuesday, March, 21st
Assignments completed for Unit 8:
Word Wall
Reminders

2. Unit 8: Mendelian Genetics 8.2 Probability and Punnett Squares

3. Probability The likelihood a particular event will occur
Example: coin flip
Probability of flipping a heads: ½ or 50%
Probability of flipping 3 heads in a row: ½ x ½ x ½ = 1/8 or 12.5%

4. Diagrams that predict the outcome of a genetic cross by considering all possible combinations of gametes in the cross.
Punnett Square

5. Steps to making a Punnett Square
** See page 4 of your notes **
Start with the parents
Figure out the gametes
Line them up on a Punnett square (2x2)
Write out the new Genotypes
Figure out the results
Steps to making a Punnett Square

6. The mother is homozygous recessive for a straight pinky finger and the father is homozygous dominant for a crooked pinky finger. Draw a Punnett Square to determine the possible:
a. genotypes
b. phenotypes
Monohybrid Example

7. A heterozygous female mouse for black, short hair is crossed with a homozygous recessive male with white fur and long hair.
a. genotypes
b. phenotypes
Dihybrid Example