Biology, 16.02.2021 01:00, shamiya15

Please answer these questions using this video: https://youtu. be/kuFODX4VuAw Questions:

Great Discovery: Genes are Located on Chromosomes

1. What is Drosophila melanogaster commonly called?

2. What are X and Y chromosomes? How did Morgan use them to determine this great discovery?

Great Discovery: Genes Control Biochemical Events

3. Why were two reasons bread mold was a good organism to study?

4. What happened when Beadle and Tatum irradiated the bread mold?

5. How did their results lead to the one-gene-one enzyme hypothesis?

Great Discovery: Transposons (“Jumping Genes”)

6. How did McClintock’s discovery change the way scientists understood chromosomes?

7. Why did Barbara McClintock vow never to present at Cold Spring Harbor?

Great Discovery: DNA carries Genetic Material

8. What organism were Hershey and Chase working with?

9. How does a bacteriophage attack a bacteria cell?

10. What are the two simple components that make up a virus?

11. What did Hershey and Chase determine to be carrying the genetic material?

Great Discovery: The Double Helix

12. Which scientists were involved in the discovery of the structure of the DNA molecule (HINT: there are four mentioned in this section)?

13. How many base chemicals are in a DNA molecule?

14. What is the name for the shape of a DNA molecule?

15. What type of bonds hold the bases together in a molecule of DNA?

16. Why was Rosalind Franklin not awarded the Nobel Prize for her contribution to the discovery of the structure of DNA?

Great Discovery: Messenger RNA

17. Cells that produce lots of proteins may contain lots of what special chemical?

18. How many strands is an RNA molecule?

19. What is produced in a bacteria cell soon after viral RNA appears in the cell?

Great Discovery: The Genetic Code

20. How many total amino acids are in your body that can be used in the production of a protein?

21. How many bases code for a triplet?

22. What information does RNA contain?

23. How many triplets are in the entire DNA genetic code?

24. How many DNA codes are used by life on Earth?

Great Discovery: Restriction Enzymes

25. List one use for recombinant DNA research.

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