1. Monday, February 24, 2014 Complete the handout: Modeling Mitosis and Meiosis. You can use your notes! Reminder: MOY II Wednesday!

2. Predict the baby’s traits Here are your parents traits: Mom: Dad: Dimples=dd No dimples=DD Freckles=FF Predict their offspring’s traits by giving a percentage that the baby will have dimples and freckles

3. Gregor Mendel 1822-1884 Father of modern genetics Used pea plants to demonstrate that certain traits were inherited and followed patterns

4. Characteristics of the pea plants Mendel studied: Seed Shape Seed Color Tall vs. Short Plants Flower Color

5. Mendel’s Accomplishments: Used Punnett squares to predict probability of a trait being expressed Gene vs. Allele Heterozygous and Homozygous alleles Genotype and Phenotype

6. Mendel’s Accomplishments: Alleles can be… Dominant Traits Recessive Traits

7. Mendel’s Accomplishments: Incomplete DominanceCodominance

8. Incomplete Dominance ● Incomplete dominance: heterozygotes have a unique phenotype that is often ‘in between’ the parental types

9. Genotypes of the parents B R = patchwork fish B B = blue fish (Dad) R R = red fish (Mom) In a certain fish, blue scales and red scales are codominant. What happens if you breed this fish with a fish that only has Blue Scales. What’s the percentage the baby will have patches? (use a Punnett square) Co-Dominance Mom Dad