Final Exam Review Exam 2

Final Exam Review Exam 2 - Exam 2 3. DNA synthesis occurs...

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Exam 2 3. DNA synthesis occurs during a cell's second growth phase. A.True B.False 4. All carcinogens are mutagens but not all mutagens are carcinogens. A.True B.False 5. Mutations in tumor suppressor genes are one of the common causes of cancer. A.True B.False 9. Which of the following is a pyrimidine? A. guanine B. cytosine C. adenine D. morphine E. deoxyribose 12. Of the following, the only substance that directly binds to an amino acid during protein synthesis is A. tRNA. B. mRNA. C. pre-mRNA. D. rRNA. E. DNA. 13. All newly synthesized proteins begin with methionine, because the code for methionine, AUG, is also A. a MET codon. B. a base triplet. C. a start codon. D. a stop codon. E. an anticodon. 14. A base sequence TATATA indicates A. a repetitive mutation in the DNA. B. where RNA polymerase should begin transcribing a gene. C. where rRNA should begin reading the mRNA code. D. the end of the gene for a particular protein. E. the anticodon of a tRNA molecule.
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Final Exam Review Exam 2 - Exam 2 3. DNA synthesis occurs...

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