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5 Written questions

5 Matching questions

  1. a principle that bonds in DNA can form only between adenine and thymine and between guanine and cytosine
  2. a three-nucleotide sequence on messenger RNA that codes for a single amino acid
  3. mRNA, a RNA molecule that carries copies of instructions for the assembly of amino acids into proteins from DNA to the rest of the cell
  4. a mutation that shifts the "reading" frame of the genetic message by inserting or deleting a nucleotide
  5. the enzyme that "proofreads" new DNA strands, helping to ensure that each molecule is a nearly perfect copy of the original DNA
  1. a base pairing
  2. b messenger RNA
  3. c DNA polymerase
  4. d codon
  5. e frameshift mutation

5 Multiple choice questions

  1. hox gene
  2. transcription
  3. nucleotide
  4. RNA polymerase
  5. ribosomal RNA

5 True/False questions

  1. a region of chromosome in an operon to which the repressor binds when the operon is "turned off"promoter


  2. tRNA, a type of RNA molecule that transfers amino acids to ribosomes during protein synthesistransfer RNA


  3. the granular material visible within the nucleus; consists of DNA tightly coiled around proteinshistone


  4. the change in DNA sequence that affects genetic informationexon


  5. a group of three bases on a tRNA molecule that are complementary to an mRNA codonmutation


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