1. Introduction: Genetics The Big Picture

2. All Normal Cells  Contain 46 chromosomes or 23 pair.

3. The Nucleus  Contains the genetic information of the cell

4. Here are Chromosomes  23 pair or a total of 46 chromosomes.

5. Sperm and Egg are Sex Cells  These specialized cells contain only 23 chromosomes. This is an egg.

6. Sperm  Males produce sperm cells.

7. Egg  Women produce eggs.

8. Fusion (fertilization)  Sperm fertilizes egg to produce a fertilized zygote with full compliment of 46 chromosomes.

9. Human Embryo  A fertilized human embryo. Life begins!

10. Back To Chromosomes  Remember, the chromosomes exist inside the nucleus.

11. Chromosomes Contain  DNA: deoxyribonucleic acid

12. Genes Located:  Along the DNA  Humans have 30- 40 thousand genes  Genes are information which code for proteins

13. Tons of Information  Each cell contains enough info to fill a 1,000 volume library!

14. Proteins  100,000 kinds  Make up 20% of our mass  Made up of amino acids

15. Function of Proteins  Structural support for cells, tissues,organs  Movement: muscle  Transport: hemoglobin  Defense:antibodies  Catalyst: enzymes