Genetics
DNA and Protein Synthesis
Answer the following ?’s on a SEPARATE PIECE OF PAPER
1. What is the shape of the DNA molecule?
2. What does DNA stand for?
3. What are building blocks of DNA?
4. What are the 3 parts of a nucleotide?
5. What are 4 nitrogenous bases?
6. What is complimentary base pairing?
7. If one side of the DNA molecule is ATTACCT, what is the other side?
8. What is transformation, and which scientist discovered it?
9. Which scientist used bacteriophage viruses to prove that DNA is the genetic code?
10. Which scientist(s) discovered the X pattern in the x-rays of the DNA molecule?
11. Who received a Nobel Prize for the 3-dimensional model of DNA?
12. If the code is UAGCU, is the molecule DNA or RNA?
13. What are the 3 hypothesized modes of replication?
14. Which of these 3 modes was proven to be correct?
15. What is semi-conservative replication?
16. What type of bond exists between the N-bases in DNA and RNA?
17. Complete the table below which shows how RNA and DNA differ.
Characteristic
RNA
A. Single or Double stranded
B. Unique N-Base
C. Role in Protein Encoding
D. Type of sugar
E. Catalytic?
DNA
18. How many carbons are in deoxyribose?
19. What is Chargaff’s rule? (What is he famous for discovering?)
20. Traits are determined by ________________________.
21. A gene’s instructions for making a protein are coded in the sequence of ________________ in the gene.
22. Where does transcription take place?
23. What kind of RNA is involved in transcription?
24. Where does translation take place and on what organelle?
25. What kind(s) of RNA are involved in translation?
26. What are the building blocks of proteins?
27. What is conformation?
28. Why are 3 N-bases needed to code for an amino acid? (Why not just 1 or 2?)
29. How many possible combinations are there using 3 N-bases?
30. How many amino acids are there?
31. Why are the numbers in question 29 and 30 not equal and what is the term for this?
32. What are the codons for “start” and “stop” in the tRNA
33. TAKE YOUR TIME WITH THIS QUESTION!!!
If the DNA coding strand is TTAATGGTTAAATAGGGG what amino acids would the polypeptide chain
consist of?