SmithLifeScience                                       Name __________________ Period _____

Reading Study Guide Chapter 5 Modern Genetics
5-3 Advances in Genetics (pp.157-162)

Page 157

1. Adrian Targett has a 9,000 year old ancient relative named _________________

2. What evidence was used to indicate that these two men were related? _________

Selective Breeding (p.158)

List the three methods for developing organisms with desirable traits.

3. _________________________
4. _________________________
5. _________________________

6. What is selective breeding?
____________________________________________________________________
____________________________________________________________________

7. Name the food that was developed using selective breeding. _________________

8. What is inbreeding? _____________________________________________
______________________________________________________________

9. What popular Thanksgiving bird was developed by inbreeding? _______________

10. Inbreeding increases the probability that organisms may inherit alleles that may
lead to ______________________.

11. What is hybridization? ___________________________________________

12. Crossing a McIntosh apple with a Red Delicious produced an ______________ apple.

13. What traits might breeders have been trying to produce in the Empire apple?
      _____________________________________________________________

Cloning (p.159)

14. What is a clone? ______________________________________________
_____________________________________________________________

15. How is an African Violet cloned? ____________________________________
_______________________________________________________________

16. Researchers have also animals such as _______________ and ______________.

17. Cloning animals is complex, it involves taking the _________________ of an animal's
     body _______________ and using the nucleus to produce a new ______________.

Genetic Engineering (p.160-161)

18. What is genetic engineering? ____________________________________
_____________________________________________________________

19. Genetic engineering is used to produce ___________ and improve _____________

List three reasons genes have been inserted into cells of plants.

20. _____________________________________
21. _____________________________________
22. _____________________________________

23. What is gene therapy? __________________________________________

24. Gene therapy may be used to correct ___________    ____________ in humans.

25. Some people think that genetically engineered crops may not be ______________.

Learning About Human Genetics (p.162)

26. What is a genome? __________________________________________________

27. What is the goal of the Human Genome Project? _________________________
_______________________________________________________________

28. Scientists have learned that the DNA of humans has at least ____________ genes.

29. Except for identical twins, no two people have exactly the same _____________