1. Mendelian Genetics Part 1
AP Biology
Mendelian Genetics
Part 1

2. Gene expression

3. Gregor Mendel

4. Character and Trait

5. Alleles for a gene

6. One from EACH parent Sperm AND Egg

7. True breeds & Hybrids

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

9. Test Cross Dominant phenotype, unknown genotype: PP or Pp?
Recessive phenotype,
known genotype: pp
If PP,
then all offspring
purple:
If Pp,
then 1 2 offspring purple
and 1 2 offspring white: p p p p P P Pp Pp Pp Pp P P Pp Pp pp pp

10. Monohybrid

11. Dihybrid

12. Law of Segregation - Anaphase

13. Independent Assortment
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

14. Chance has NO memory.