1. Biology Discussion Notes Thursday 01/08/2015

2. Goals for the day 1.Be able to say the names of everyone in our class 2.Be able to define what haploid & diploid mean and know the numbers for humans 3.Be able to calculate haploid number given diploid number & vice versa 4.Know the haploid & diploid number for HUMANS

3. Question of the Day THUR 1/08 What is the goal of Meiosis? (You may use your reading sheet)

4. Meiosis is a process that reduces the amount of chromosomes in a cell to half the original amount Why would you want to reduce chromosomes by half?

5. Where do you get your chromosomes (DNA) from?

7. Human Egg and Sperm cells have 23 chromosomes in them. How many chromosomes are in human egg and sperm cells?

8. Haploid – a half set of chromosomes (only found in sex cells) Diploid – a full set of chromosomes (found in all body cells, except sex cells- Body Cells AKA somatic cells)

9. Gamete Skin Cell Egg Somatic Cell Sperm Sex Cell Haploid or Diploid?

10. How many chromosomes do humans have in their cells? How many chromosomes would be in a human diploid cell? How many chromosomes would be in a human haploid cell?

11. If a Dragon’s wing cell has 50 chromosomes in it then... 2n=_______ n=______

12. NAME GAME First Round: Say your own name when you get the ball – must throw it to someone who has not had it yet. Second Round: Say the name of the person you are throwing it to, if you don’t know a name, you should……

13. Reading guide Work on Reading guide

14. Species of the Day 1/8 Rough-legged Hawk –Buteo lagopus

15. Species of the Day 1/8

16. Rough-legged Hawk –Buteo lagopus If the egg cell of this hawk had 30 chromosomes, how many chromosomes would you find in its SOMATIC cells?