Chapter 17 Review: 19630/5025341

  1. Translation practice
  2. Which one of the following is NOT associated with translation?
    1. rRNA (wrong)
    2. mRNA (wrong)
    3. tRNA (wrong)
    4. DNA <==== correct
    5. ribosome (wrong)
      (Why? )

  3. A triplet of bases in the coding sequence of DNA is AAA. The codon on the corresponding mRNA is
    1. TTT. (wrong)
    2. UUA. (wrong)
    3. UUU. <==== correct
    4. AAA. (wrong)
    5. CCC. (wrong)
      Hint
  4. A protein that is 300 amino acids long can be coded by which maximum number of nucleotides in the DNA?
    1. 3 (wrong)
    2. 100 (wrong)
    3. 300 (wrong)
    4. 900 <==== correct
    5. 600 (wrong)
      Hint
  5. Which codon codes for the amino acid Aspartate (Asp)?
    1. GAC <==== correct
    2. GAA (wrong)
    3. GAG (wrong)
    4. GGU (wrong)
    5. GGC (wrong)
      Hint
  6. During transcription initiation, ________ polymerase binds to promoter sequences on the ________.
    1. DNA, RNA (wrong)
    2. DNA, ribosome (wrong)
    3. RNA, ribosome (wrong)
    4. DNA, nucleosome (wrong)
    5. RNA, DNA <==== correct
      Hint
  7. Which kind of mutation can cause silent mutations?
    1. substitution <==== correct
    2. insertion (wrong)
    3. deletion (wrong)
    4. frameshift (wrong)
    5. pointless (wrong)
      Hint
  8. What are ribosomes composed of?
    1. rRNA only (wrong)
    2. proteins only (wrong)
    3. both rRNA and protein <==== correct
    4. mRNA, rRNA, and protein (wrong)
    5. mRNA, tRNA, rRNA, and protein (wrong)
      Hint