2. Sex Cells Gametes (germ cells) Eggs and Sperm Somatic Cells All other cells Questions: 1, 2, 3, 4

3. Autosomes – same number in males and females Sex Chromosomes – X or Y Human females: XX Male females: XY Testosterone and other hormones from the Y make a male Question: 5

4. 46 chromosomes in a somatic cell (23 pairs) 23 chromosomes in a gamete Questions: 6, 7

5. Describes how many sets of different chromosomes a cell has. n = number of chromosomes in 1 set (haploid number) Haploid Cells: 1n Diploid Cells: 2n In humans, n = 23 (the number of different chromosomes we have) 32/16 62 Questions: the chart, 8, 9

7. Questions: 10, 11

8. Questions: 12, 13

9. Question: 14