DNA UNIT QUIZ/2018 Take Home
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1. 3' ATC AGC GCT GGC GCC 5' ....Is a sequence of DNA that is part of a gene. If this piece of DNA were to be transcribed, how many codons would be present?
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2. One human disease is caused by a substitution in one base in a gene from GAA to GUA. This disease is the result of a
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3. Which of the following best describes the composition of a nucleotide?
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4. An enzyme moves along a strand of DNA and produces a new nucleic acid strand. Part of the new strand is shown below. GTACTCGGCAATTTCGCA Which of the following cellular processes created the new strand?
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Which of the following is a characteristic of RNA but not DNA?
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6. Diagram 1 below, what process is being illustrated?
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Diagram 1
7. Refer to diagram 2, below. Which of the following is NOT visible or present?
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Diagram 2
8. Refer to diagram 2 above. If you unzipped and replicated the above diagram, what would you need to "break" first?
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10. Using the diagram below (diagram 3), what portion of the protein molecule is coded for the the following mRNA? mRNA = AGU AAG UGC UUC
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Diagram 3
11. Refer to the above diagram (diagram 3). Suppose that you are given a protein containing the following sequence of amino acids: arginine (arg)-Methionine (met)- aspartic acid (asp). Which DNA sequence would have coded for this amino acid sequence?
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12. Which of the following represents the codons that correspond to this segment of DNA: TATCAGGAT?
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Diagram 4
13. Use diagram 4, above to answer. Letter Y is a process called
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14. How many codons are needed to specify three amino acids
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15. Which of the following base pair sequences could be produced in DNA replication Given the following DNA strand: 3' TCA GTA 5'
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16. Which of the following correctly ranks the structures in order of size, from SMALLEST to LARGEST?
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17. The nucleotide sequence of DNA is TTA. A messenger RNA molecule with a complementary codon is transcribed from the DNA. In the process of protein synthesis, a transfer RNA pairs with the mRNA codon. What is the base sequence of the tRNA anticodon?
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18.Ultraviolet (UV) radiation is damaging because it _____.
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19. The information in DNA is contained in _____.
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20. A messenger RNA molecule for making a protein is made in the nucleus and sent out to a ribosome. The ribosome reads the mRNA and makes a protein containing 120 amino acids. The mRNA consisted of at least how many codons?
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21. At one point as a cell carried out its day-to-day activities, the nucleotides G A T were paired with the nucleotides C U A. This pairing occurred
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23. In a nucleotide, the bases are always attached to the _______________ carbon of the sugar.
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24. DNA replication is called semiconservative because half of each of the two new strands of DNA is "old" DNA from the original DNA molecule and half is "new" DNA.
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25. Which of the following terms is LEAST closely related to the others?
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26. According to Hank (in the videos on KHAN), the molecule Titin is
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27. What is meant by the description "antiparallel" regarding the strands that make up DNA?
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28. In an analysis of the nucleotide composition of DNA, which of the following will be found?
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29 Match the # in the diagram with the correct word or words. In diagram 5 below, #1 is pointing to
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diagram 5
30 Match the # in the diagram with the correct word or words. In diagram 5 above, #3 is pointing to
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