Biology questions

1. What were the characteristics of the Pea plant that enabled Mendel to do his experiments?

2. How does probability and chance play an important role in genetics?

3. Explain the difference between geneotypes and phenotypes:

4. What does it mean when they say some genes are linked?

5. Define a recessive trait. How is it expressed?

6. Define a dominant trait. How is it expressed?

7. What is co dominance?

8. Develop a Punnett square for the following cross: aa X Aa