NAME

Question types


Start with


Question limit

of 37 available terms

Advertisement Upgrade to remove ads
Print test

5 Written questions

5 Matching questions

  1. x-ray crystallography
  2. Okazaki fragment
  3. helicase
  4. nucleotide excision repair
  5. pyrimidine
  1. a A technique that depends on the diffraction of an X-ray beam by the individual atoms of a crystallized molecule to study the three-dimensional structure of the molecule.
  2. b A short segment of DNA synthesized away from the replication fork on a template strand during DNA replication, many of which are joined together to make up the lagging strand of newly synthesized DNA.
  3. c One of two types of nitrogenous bases found in nucleotides, characterized by a six-membered ring. Cytosine (C), thymine (T), and uracil (U) are pyrimidines.
  4. d A repair system that removes and then correctly replaces a damaged segment of DNA using the undamaged strand as a guide.
  5. e An enzyme that untwists the double helix of DNA at the replication forks, separating the two strands and making them available as template strands.

5 Multiple choice questions

  1. The form of native DNA, referring to its two adjacent antiparallel polynucleotide strands wound around an imaginary axis into a spiral shape.
  2. (1) The conversion of a normal animal cell to a cancerous cell. (2) A change in genotype and phenotype due to the assimilation of external DNA by a cell.
  3. An enzyme that joins RNA nucleotides to make the primer using the parental DNA strand as a template.
  4. The new complementary DNA strand synthesized continuously along the template strand toward the replication fork in the mandatory 5'?3' direction.
  5. An enzyme that catalyzes the lengthening of telomeres in eukaryotic germ cells.

5 True/False questions

  1. phageA virus that infects bacteria; also called a bacteriophage.

          

  2. radioactive isotopeAn isotope (an atomic form of a chemical element) that is unstable; the nucleus decays spontaneously, giving off detectable particles and energy.

          

  3. telomereAn enzyme that catalyzes the lengthening of telomeres in eukaryotic germ cells.

          

  4. DNA ligaseAn enzyme that untwists the double helix of DNA at the replication forks, separating the two strands and making them available as template strands.

          

  5. chromatinThe complex of DNA and proteins that makes up a eukaryotic chromosome. When the cell is not dividing, chromatin exists in its dispersed form, as a mass of very long, thin fibers that are not visible with a light microscope.

          

Create Set