008 Chapter 8 - 008 Chapter 8 - DNA and RNA: The Molecular...

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Unformatted text preview: 008 Chapter 8 - DNA and RNA: The Molecular Basis of Heredity Student: ___________________________________________________________________________ 1. This term describes how a cell makes a protein from the protein coding sequence of a gene. A. transcription B. gene expression C. translation D. gene phrasing 2. Which one of the following does not apply to RNA? A. It is a single strand. B. It contains the base uracil. C. The sugar is deoxyribose. D. It is involved in translation and transcription. 3. DNA nucleotide sequences that indicate when RNA polymerase should finish making an RNA molecule are called A. enhancer sequences. B. elongation sequenes. C. genetic recombinant sequences. D. termination sequences. 4. Which of the following does not display the base pairing rule? A. A with T B. G with C C. U with D D. U with A 5. Both a base and a phosphate are attached ____ in a nucleotide. A. to each other B. to a sugar C. to each other and to a sugar D. None of these answers is true because phosphate is not part of a nucleotide. 6. The process of translation can be broken down into three basic steps. Which of the following is not one of these? A. initiation B. elongation C. translocation D. termination 7. In a DNA double helix, the phosphates are bonded to A. phosphates. B. ribose. C. deoxyribose. D. uracil. 8. These proteins are clustered with their encircling DNA into structures called nucleosomes. A. histones B. plastids C. exons D. carrier proteins 9. A human cell contains 46 chromosomes consisting of about ____________ base pairs. A. 50 B. 20,000 C. 50,000,000 D. 3,000,000,000 10. In DNA replication, A. a new noncoding strand is made for the coding strand. B. a new coding strand is made for the noncoding strand. C. Both of these occur. D. None of these occur. 11. When a gene picks up nucleotides to build its noncoding strand, this is known as A. DNA replication. B. RNA transcription. C. DNA translation. D. RNA coverage. 12. In the process of DNA replication, adenine will pair with A. guanine. B. cytosine. C. thymine. D. uracil. 13. Which of these originally tells where an amino acid is to be positioned in a protein? A. DNA B. nucleus C. tRNA D. ribose RNA 14. If all the possible three-letter codes were written using only the four DNA nucleotides for letters, there would be a total of _______ combinations possible. A. 4 B. 20 C. 64 D. 32 15. A single strand, twisted back on itself like a hairpin multiple times, best describes A. DNA. B. mRNA. C. tRNA. D. a ribosome. 16. Which of the following contains a coded message of how to construct a protein? A. ATP B. tRNA C. ribosome D. mRNA 17. Which of the following is a normally correct sequence in transcription?...
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008 Chapter 8 - 008 Chapter 8 - DNA and RNA: The Molecular...

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