DNA and Protein Synthesis

1. Fatty acid 2. Nucleotide 3. Glucose 4. Amino acid 1. The monomer of DNA is

2. The enzyme that unzips DNA in replication is 1. RNA polymerase 2. DNA polymerase 3. Helicase 4. Binding protein

3. The sides of DNA consist of 1. Base and sugar 2. Base and phosphate 3. Phosphate and sugar 4. Phosphate and amino

4. The purines are 1. Adenine and guanine 2. Cytosine and adenine 3. Adenine and thymine 4. Cytosine and guanine

5. The base pairings are 1. A and G, C and T 2. A and T, C and G 3. A and C, G and T 4. None of these are correct

6. DNA replication occurs when 1. New cells are being formed 2. Gametes are being formed 3. A cell dies 4. Both 1 and 2 are correct

7. Who was awarded with the discovery of the structure of DNA? 1. Rosalind Franklin 2. Francis Crick 3. James Watson 4. Gregor Mendel 5. Both 2 and 3

8. Where does replication unzip? 1. At the end of the DNA molecule being copied 2. A Point on the DNA molecule in which the helicase is unzipping the DNA 3. An Attachment of DNA polymerase to the old DNA strand 4. None of these are correct

9. Mistakes in the DNA code are called 1. Errors 2. Mistakes 3. Mutations 4. mishaps

10. Where is DNA found in the cell? 1. Cytoplasm 2. Lysosome 3. Vacuole 4. nucleus

11. RNA differs from DNA in that it 1. Single stranded and not double stranded 2. Contains ribose and not deoxyribose 3. Contains thymine and not uracil 4. 1 and 2 are correct 5. All are correct

12. The function of Messenger RNA is to 1. Bring an amino acid to the ribosome 2. Make up the ribosome structure 3. Copy the DNA code and bring it to the ribosome 4. Copy the DNA code and bring it to the mitochondria

13. tRNA is shaped like a 1. Square 2. Circle 3. Oval 4. cloverleaf

14. Protein synthesis takes place at the 1. Nucleus 2. vacuole 3. Mitochondria 4. Ribosome

15. Genes in your DNA make 1. Carbohydrates 2. Lipids 3. Nucleic Acids 4. Protein 5. Both 1 and 2 6. Both 3 and 4

16. tRNA molecules carry_____ to the ______ 1. DNA, nucleus 2. DNA, ribosome 3. Amino acids, ribosome 4. Amino acids, nucleus

17. How many bases must a gene contain to code for a protein with 500 amino acids?

18. The process of mRNA making a copy of DNA is called 1. Replication 2. Transcription 3. Translation 4. None of these

19. A purine will always match with a purine 1. True 2. False

20. If the DNA code is ACGTTTACG, what is mRNA 1. AGCAAATGC 2. TCGTTTACG 3. UGCAAAUGC 4. UGCAAATGC

21. The types of bonds that form between the sides of the ladder are 1. Covalent 2. Hydrogen 3. Ionic 4. Polar covalent

22.The start codon is 1. Threonine 2. Valine 3. Methionine 4. serine

23. Each strand of mRNA codes for 1 amino acid 1. True 2. False

24. Which of the following is NOT part of DNA? 1. Phosphate 2. Deoxyribose sugar 3. Glucose 4. Nitrogen bases

25. During the process of transcription 1. DNA replicate 2. Proteins are formed 3. mRNA is assembled 4. Cell division occurs

26. The amino acids needed for protein synthesis come from 1. Start codons 2. tRNA 3. Triplet code 4. The food you eat 5. The template

27. Ribosomes attach to this structure(s) 1. DNA 2. mRNA 3. tRNA 4. Both DNA and mRNA 5. Both mRNA and tRNA

28. Structure(s) made up of nucleotides 1. DNA 2. mRNA 3. tRNA 4. All of the above

29. What structure(s) contain ribose sugar? 1. DNA 2. mRNA 3. tRNA 4. Both 1 and 2 5. Both 2 and 3

30. Can contain the code for protein synthesis? 1. DNA 2. mRNA 3. tRNA 4. Both 1 and 2 5. Both 2 and 3 6. All of the above

31. During DNA replication, a portion of the molecule unzips and DNA nucleotides join with any DNA nucleotides present in the nucleus.. 1. True 2. False

32. The during the formation of a DNA replication splits during which process? 1. Transcription 2. Regulation 3. Translation 4. DNA replication

33. What enzyme start DNA replication? 1. Helicase 2. DNA polymerase 3. RNA polymerase 4. All of the above 5. None of these

34. Uracil is a pyrimidine. 1. True 2. False

35. A DNA molecule is 1. Double-stranded 2. Single-stranded 3. Like a ladder 4. Both 1 and 2 5. Both 1 and 3

36. The point on mRNA at which protein synthesis begins is called the 1. Start codon 2. Stop codon 3. Translation site 4. Transcription site

37. Transcription happens in the 1. Cytoplasm 2. Nucleus 3. Mitochondria 4. ribsome

38. DNA replication is controlled by 1. Codons 2. RNA 3. Ribosomes 4. The nucleus 5. Enzymes