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5 Written questions

5 Matching questions

  1. Helicase
  2. mutation
  3. RNA polymerase
  4. nucleotide
  5. semi-conservative replication
  1. a an enzyme that separates DNA strands
  2. b The building block of a nucleic acid, consisting of a five-carbon sugar covalently bonded to a nitrogenous bas and a phosphate group.
  3. c The way in which DNA is synthesized. Each of the two partner strands in a double helix acts as a template for a new partner strand. Hence, after replication each double helix consists of one old and one new strand.
  4. d change in a DNA sequence that affects genetic information
  5. e enzyme that adds and links complementary RNA nucleotides during transcription

5 Multiple choice questions

  1. three-nucleotide sequence on messenger RNA that codes for a single amino acid
  2. transfer RNA; type of RNA that carries amino acids to the ribosome
  3. Means that a purine is always bonded to a pyrimidine (i.e. A with T, C with G, etc.)
  4. ribosomal RNA; type of RNA that makes up part of the ribosome
  5. ribonucleic acid

5 True/False questions

  1. hydrogen bondsComplete set of genetic information


  2. nitrogenous basecarbon ring structure found in DNA or RNA that contains one or more atoms of nitrogen; includes adenine, guanine, cytosine, thymine and uracil


  3. stop codoncodon that specifies an amino acid that stops protein building


  4. mRNAribosomal RNA; type of RNA that makes up part of the ribosome


  5. Watson and Crickbasic building blocks of protein molecules