CHAPTER 10DNA and Protein Synthesis

1. Fatty acid2. Nucleotide3. Glucose4. Amino acid

1. The monomer of DNA is

1 2 3 4

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2. The enzyme that unzips DNA in replication is

1. RNA polymerase2. DNA polymerase3. Helicase4. Binding protein

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3. The sides of DNA consist of

1. Base and sugar2. Base and phosphate3. Phosphate and

sugar4. Phosphate and

amino

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4. The purines are

1. Adenine and guanine

2. Cytosine and adenine

3. Adenine and thymine

4. Cytosine and guanine

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5. The base pairings are

1. A and G, C and T2. A and T, C and G3. A and C, G and T4. None of these

are correct

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6. DNA replication occurs when

1. New cells are being formed

2. Gametes are being formed

3. A cell dies4. Both 1 and 2 are

correct1 2 3 4

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7. Who was awarded with the discovery of the structure of DNA?

1. Rosalind Franklin2. Francis Crick3. James Watson4. Gregor Mendel5. Both 2 and 3

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8. Where does replication unzip?

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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. Errors2. Mistakes3. Mutations4. mishaps

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10. Where is DNA found in the cell?

1. Cytoplasm2. Lysosome3. Vacuole4. nucleus

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11. RNA differs from DNA in that it1. 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 correct1 2 3 4 5

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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 1 2 3 4

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13. tRNA is shaped like a

1. Square2. Circle3. Oval4. cloverleaf

1 2 3 4

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14. Protein synthesis takes place at the

1. Nucleus2. vacuole3. Mitochondria4. Ribosome

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15. Genes in your DNA make

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1. Carbohydrates2. Lipids3. Nucleic Acids4. Protein5. Both 1 and 26. Both 3 and 4

16. tRNA molecules carry_____ to the ______

1. DNA, nucleus2. DNA, ribosome3. Amino acids,

ribosome4. Amino acids,

nucleus

1 2 3 4

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

1. 2502. 4993. 10004. 1500

1 2 3 4

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18. The process of mRNA making a copy of DNA is called

1. Replication2. Transcription3. Translation4. None of these

1 2 3 4

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19. A purine will always match with a purine

1. True2. False

1 2

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20. If the DNA code is ACGTTTACG, what is mRNA

1. AGCAAATGC2. TCGTTTACG3. UGCAAAUGC4. UGCAAATGC

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21. The types of bonds that form between the sides of the ladder are

1. Covalent2. Hydrogen3. Ionic 4. Polar covalent

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22.The start codon is

1. Threonine2. Valine3. Methionine4. serine

1 2 3 4

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23. Each strand of mRNA codes for 1 amino acid

1. True2. False

1 2

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24. Which of the following is NOT part of DNA?

1. Phosphate2. Deoxyribose

sugar3. Glucose4. Nitrogen bases

1 2 3 4

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25. During the process of transcription1. DNA replicate2. Proteins are

formed3. mRNA is

assembled4. Cell division

occurs

1 2 3 4

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26. The amino acids needed for protein synthesis come from1. Start codons2. tRNA3. Triplet code4. The food you

eat5. The template

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27. Ribosomes attach to this structure(s)

1 2 3 4 5

20% 20% 20%20%20%1. DNA2. mRNA3. tRNA4. Both DNA and

mRNA5. Both mRNA and

tRNA

28. Structure(s) made up of nucleotides

1. DNA2. mRNA3. tRNA4. All of the above

1 2 3 4

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29. What structure(s) contain ribose sugar?

1. DNA2. mRNA3. tRNA4. Both 1 and 25. Both 2 and 3

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30. Can contain the code for protein synthesis?

1 2 3 4 5 6

17% 17% 17%17%17%17%1. DNA2. mRNA3. tRNA4. Both 1 and 25. Both 2 and 36. 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. True2. False

1 2

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32. The during the formation of a DNA replication splits during which process?1. Transcription2. Regulation 3. Translation4. DNA replication

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33. What enzyme start DNA replication?

1. Helicase2. DNA polymerase3. RNA polymerase4. All of the above5. None of these

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34. Uracil is a pyrimidine.

1. True2. False

1 2

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35. A DNA molecule is

1. Double-stranded2. Single-stranded3. Like a ladder4. Both 1 and 25. Both 1 and 3

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36. The point on mRNA at which protein synthesis begins is called the

1. Start codon2. Stop codon3. Translation site4. Transcription site

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37. Transcription happens in the

1. Cytoplasm2. Nucleus3. Mitochondria4. ribsome

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38. DNA replication is controlled by

1. Codons2. RNA3. Ribosomes4. The nucleus5. Enzymes

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