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5 Written questions

5 Matching questions

  1. exon
  2. operator
  3. DNA polymerase
  4. messenger RNA (mRNA)
  5. intron
  1. a expressed sequence of DNA ; codes for a protein
  2. b RNA molecule that carries copies of instructions for the assembly of amino acids into proteins from DNA to the rest of the cell
  3. c region of chromosome in an operon to which the repressor binds when the operon is "turned off"
  4. d enzyme involved in DNA replication that joins individual nucleotides to produce a DNA molecule
  5. e sequence og DNA that is not involved in coding for a protein

5 Multiple choice questions

  1. group of three bases on a tRNA molecule that are complementary to an mRNA codon
  2. condition in which an organism has extra sets of chromosomes
  3. protein molecule around which DNA is tightly coiled in chromatin
  4. group of genes operating together
  5. process in which part of the nucleotide sequence of DNA is copied into a complementary sequence in RNA

5 True/False questions

  1. translationprocess in which part of the nucleotide sequence of DNA is copied into a complementary sequence in RNA

          

  2. genesequence of DNA that codes for a protein and thus determines a trait or chemical pathway

          

  3. transfer RNA (tRNA)type of RNA molecule that transfers amino acids to ribosomes during protein synthesis has anticodon exposed

          

  4. replicationcopying process by which a cell duplicates its DNA

          

  5. mutationchange in a DNA sequence that affects genetic information