1. Pre – AP Biology
Mendelian Genetics (5.1)

2. Gregor Mendel

3. Character and Trait

4. Alleles – different versions of a gene
Alleles – different versions of a gene. Both genes code for flower color.

5. Need 2 Alleles to make a trait

6. One from EACH parent Sperm AND Egg

7. True breed versus hybrid

8. Phenotype vs. Genotype Physical Trait vs. Gene allele type

9. Test Cross

10. Monohybrid Punnett

11. Dihybrid Punnett

12. Independent Assortment – See the different outcomes at the bottom
Independent Assortment – See the different outcomes at the bottom? It was because of how they lined up on the midplane.
Key
Maternal set of
chromosomes
Possibility 1
Possibility 2
Paternal set of
chromosomes
Two equally probable
arrangements of
chromosomes at
metaphase I
Metaphase II
Daughter
cells
Combination 1
Combination 2
Combination 3
Combination 4

13. Chance has NO memory.