1. Genes and Heredity

2. Mrs. Blue Monster & Mr. Yellow Monster fall in love!
Awww!

3. They have 4 healthy monster babies
They have 4 healthy monster babies. Predict: Of their 4 monster babies, how many are yellow? Blue? Green? Other??

4. 4 Blue Monster Babies

5. Gregor Mendel The Father of Genetics
Noticed inheritance traits were passed done from generation to generation
Worked with peas.

6. 1st Experiment
2nd Experiment
Law of Dominance

7. Gene: Sequence of DNA that codes for a particular trait Allele: Alternative forms of a gene * Humans are diploid therefore we have ___ copies of each gene, and thus ___ alleles. Dominant Alleles: Determine the expression of a trait (upper case letter) Recessive Alleles: Are overruled by the dominant allele (lower case letter)

8. Punnett Squares

9. Genotype: The alleles an organism contains
Genotype: The alleles an organism contains. Phenotype: The observable traits that arise because of the interaction between genes & environment.
Homozygous: Genotype in which both alleles are the same. Heterozygous: Genotype in which both alleles are different.

10. Mendel’s Law of Segregation Alleles separate during meiosis
Mendel’s Law of Segregation Alleles separate during meiosis. A gamete will receive one allele or the other, but not both.

11. Mendel’s 2nd Law: Law of Independent Assortment Alleles of different genes assort independently of one another during meiosis.

13. Mendel Song http://www.youtube.com/watch?v=mx6maAOOfxQ
Mendel Worksheet
Read p
p. 135 #1-6