Standardized Test Prep

Multiple Choice

1. How does RNA differ from DNA?

   1. RNA contains uracil and deoxyribose.

   2. RNA contains ribose and thymine.

   3. RNA contains uracil and ribose.

   4. RNA contains adenine and ribose.

2. How would the DNA sequence GCTATA be transcribed to mRNA?

   1. GCUAUA

   2. CGATAT

   3. CGAUAU

   4. GCUTUT

Questions 3–4

Use the chart below to answer the questions.

d

3. Which of the following codons signifies the end of translation?

   1. CAA

   2. UGA

   3. AUC

   4. CCA

4. Which of the chains of amino acids corresponds to the nucleotide sequence UCAAGCGUA?

   1. glu-cys-pro

   2. glu-asp-“stop”

   3. thr-arg-met

   4. ser-ser-val

5. In eukaryotes, functional messenger RNA molecules are made from

   1. exons spliced together after introns are removed.

   2. introns spliced together after exons are removed.

   3. exons spliced together with introns.

   4. long pieces of RNA shortened by the Dicer enzyme.

6. Promoters are

   1. genes that code for individual proteins.

   2. proteins that bind with DNA and prevent transcription.

   3. DNA sequences near operons that regulate transcription.

   4. small molecules that bind with repressor proteins.

Questions 7–8

Use the diagrams below to answer the questions.



7. Mutant 1 is a(n)

   1. deletion.

   2. translocation.

   3. inversion.

   4. duplication.

8. Mutant 2 is a(n)

   1. deletion.

   2. translocation.

   3. inversion.

   4. duplication.

Open-Ended Response

9. What is the function of the lac repressor system in E. coli?

If You Have Trouble With…

Question	1	2	3	4	5	6	7	8	9
See Lesson	13.1	13.1	13.2	13.2	13.1	13.1	13.3	13.3	13.4

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