DNA (CH.12) Review Sheet
Questions
Name__________________ Date_______________
1. Name two nucleic acids.
2. What are the building blocks of nucleic acids?
3. Name the three components of a nucleotide.
4. What does DNA stand for?
5. What does RNA stand for?
6. What are the building blocks of proteins?
7. How many amino acids are found in the human body?
8. Where does replication occur in the cell?
9. What does replication mean?
10. If you start with one DNA molecule, how many DNA molecules do you have at the end
of replication?
11. What is the shape of a DNA molecule?
12. Name the two scientists that came up with the name for the DNA molecule.
13. What makes up the rails, which are the sides, of a DNA molecule?
14. What makes up the rungs, which are the steps, of a DNA molecule?
15. Name the four nitrogen bases found in a molecule of DNA.
16. Name the four nitrogen bases found in a molecule of RNA.
17. In what part of the cell does transcription take place?
18. What type of RNA is made from messenger RNA?
19. What type of RNA is made during transcription?
20. Where does mRNA take the triplicate code after it leaves the nucleus?
21. Name two things tRNA carries.
22. Where does translation occur in the cell?
23. When codons are matched with anticodons amino acids begin to link together to form?
24. What is protein synthesis?
25. What is the name of the triplicate code carried by mRNA?
26. What is the name of the triplicate code carried by tRNA?
27. What cell organelle is responsible for making proteins?
28. Which nucleic acid, DNA or RNA, is made of a double strand?
29. Which nucleic acid, DNA or RNA is made of a single strand?
30. What nucleic acid contains uracil in the place of thymine?
31. What nucleic acid contains thymine in the place of uracil?
32. What type of nucleic acid remains in the nucleus of the cell?
33. What type of nucleic acid leaves the nucleus and attaches to the ribosome?
34. What process matches codons to anticodons to form a long chain of amino acids?
35. Name the nitrogen bases and their match for the DNA molecule.
36. Name the nitrogen bases and their match for the RNA molecule.
Answers
1. DNA and RNA
2. Nucleotides
3. Sugar, phosphate, nitrogen base
4. Deoxyribonucleic acid
5. Ribonucleic acid
6. Amino acids
7. 20
8. Nucleus
9. The copying of DNA.
10. Two
11. Double helix
12. Watson and Crick
13. Sugar and Phosphate groups
14. Nitrogen bases
15. Cytosine, Guanine, Adenine, Thymine
16. Cytosine, Guanine, Adenine, Uracil
17. The ribosome
18. tRNA
19. mRNA
20. The ribosome
21. Anticodons and amino acids
22. The ribosome
23. A polypeptide chain that will eventually form a protein
24. The linking together of amino acids
25. Codon
26. Anticodon
27. Ribosome
28. DNA
29. RNA
30. RNA
31. DNA
32. DNA
33. mRNA
34. Translation
35. Adenine with Thymine
Cytosine with Guanine
36. Adenine with Uracil
Cytosine with Guanine