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DNA (CH.12) Review Sheet Name__________________ Date_______________

Questions

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

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