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5 Written questions

5 Matching questions

  1. polyploidy
  2. transfer RNA (tRNA)
  3. codon
  4. replication
  5. frameshift mutation
  1. a mutation that shifts the "reading" frame of the genetic message by inserting or deleting a nucleotide
  2. b condition in which an organism has extra sets of chromosomes
  3. c type of RNA molecule that transfers amino acids to ribosomes during protein synthesis has anticodon exposed
  4. d copying process by which a cell duplicates its DNA
  5. e three-nucleotide sequence on messenger RNA that codes for a single amino acid

5 Multiple choice questions

  1. process in which part of the nucleotide sequence of DNA is copied into a complementary sequence in RNA
  2. region of DNA that indicates to an enzyme where to bind to make RNA
  3. region of chromosome in an operon to which the repressor binds when the operon is "turned off"
  4. expressed sequence of DNA ; codes for a protein
  5. enzyme similar to DNA polymerase that binds to DNA and separates the DNA strands during transcription

5 True/False questions

  1. point mutationgene mutation involving changes in one or a few nucleotides


  2. translationdecoding of an mRNA message into a polypeptide chain


  3. ribosomal RNA (rRNA)type of RNA that makes up the major part of a ribosome


  4. operonexpressed sequence of DNA ; codes for a protein


  5. chromatingranular material visible within the nucleus; consists of DNA tightly coiled around proteins