Variation Revision Questions

1. How many chromosomes are in the nucleus of nearly all human body cells?

2. What chemical are they made of?

3. Name 2 types of cell that only have 23

4. What are the sections of these chromosomes called?

5. What do they do?

6. What is the fusion of two gametes called?

7. What does the new cell then do?

8. If a couple have 10 children why are they all different? (none are twins)

9. What is a clone?

10. Why is variation in a species a good thing?

11. Why might it be an advantage for a plant to be able to clone itself?

12. Name two ways that we can clone plants

13. Why might farmers want to clone their plants?

14. What is the difference between fusion cell and adult cell cloning?

15. What is genetic engineering?

16. How is it done?

17. How might it be of great benefit?

18. Why do many people think we should be cautious about doing it?

19. Why are some people absolutely against it?