Answer Key

1. B
2. B
3. mRNA – messenger RNA, is made through transcription from DNA, single chain with 4 bases.
tRNA – transfer RNA, has an anticodon which pairs up with a codon on mRNA; brings in amino
acids to be formed into proteins
rRNA- ribosomal RNA, makes up the ribosomes which is where proteins are assembled
4. Don’t do
5. don’t do
6. UGGCAGUG
7. Don’t do
8. C
9. D
10. C
11. C
12. A sequence of three bases on the genetic code
13. Match up to a codon
14. GAU – CUA
15. Proteins are building blocks, so they need to be specific
16. Transcribe DNA to RNA. Translate RNA into proteins
17. Don’t do
18. B
19. D
20. B
21. Gene and Chromosome. Both mutate the genetic code. They differ in the amount of genetic
material they mutate.
22. Delete code versus insert a different code letter
23. Sometimes
24. Meiosis mutation can damage the whole organism because meiosis produces gametes.
Mutation during mitosis will only damage the cell that is being divided.
25. GUG to GUA. Nothing – both code for the same protein
26. Don’t do
27. Don’t do
28. Don’t do
29. Don’t do
30. Don’t do
31. Don’t do
32. Don’t do
33. Don’t do
–

34. Don’t do
35. Not one bit
36. Switch the second base in either Alanine or Valine
37. Don’t do
38. Don’t do
39. B
40. A
Test Prep
1. C
2. C
3. B
4. D
5. Don’t do
6. C
7. C
8. D
9. Don’t do