1. Bell-Ringer 1/4:
Have your stamp sheet and Mendel & Meiosis out for me to check.
Work with your table group to complete the card sort.

2. Sexual Reproduction: Increasing Genetic Variability
Crossing over
Independent assortment
Random fertilization.

3. Crossing Over Remove your Chromosomes from the baggie.
Pair up the homologous chromosomes

4. Crossing Over
3. As homologous chromosomes move near each other, pieces of the chromatids are exchanged.
4. The beads on your chromosomes represent specific genes. Remove the beads from one gene and exchange it with the beads of the homologous chromosome.

5. Independent Assortment
5. Are the green genes connected to the purple genes? 6. If you moved the purple gene, did the green gene move with it?

6. Random Fertilization Possible Egg Combinations
at the end of Meiosis
Possible Sperm Combinations at the end of Meiosis

7. Random Fertilization
Are any of these combinations identical?