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5 Written questions

5 Matching questions

  1. intron
  2. mutation
  3. exon
  4. operon
  5. point mutation
  1. a expressed sequence of DNA ; codes for a protein
  2. b sequence og DNA that is not involved in coding for a protein
  3. c gene mutation involving changes in one or a few nucleotides
  4. d change in a DNA sequence that affects genetic information
  5. e group of genes operating together

5 Multiple choice questions

  1. process in which part of the nucleotide sequence of DNA is copied into a complementary sequence in RNA
  2. type of RNA that makes up the major part of a ribosome
  3. protein molecule around which DNA is tightly coiled in chromatin
  4. group of three bases on a tRNA molecule that are complementary to an mRNA codon
  5. three-nucleotide sequence on messenger RNA that codes for a single amino acid

5 True/False questions

  1. base pairingprinciple that bonds in DNA can form only between adenine and thymine and between guanine and cytosine

          

  2. polyploidycondition in which an organism has extra sets of chromosomes

          

  3. DNA polymeraseenzyme involved in DNA replication that joins individual nucleotides to produce a DNA molecule

          

  4. nucleotidechange in a DNA sequence that affects genetic information

          

  5. frameshift mutationgene mutation involving changes in one or a few nucleotides

          

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