Multiple ChoiceIn the double helix structure of DNA, how many hydrogen bonds hold adenine and thymine together?74views
Multiple ChoiceIn the structure of DNA, what kind of sugar is found in the nucleotide backbone?9views
Multiple ChoiceWhich type of bond is primarily responsible for holding the two strands of DNA together in the double helix structure?104views
Multiple ChoiceDNA is made of four different bases: _______, _______, _______, and ______. Which of the following lists correctly names all four bases found in DNA?60views
Multiple ChoiceWhich of the following best describes the component of DNA labeled with an X in the diagram, if X is pointing to the phosphate group?51views
Multiple ChoiceIn DNA, base pairing follows A–T and C–G rules. What is the complementary DNA sequence to the strand 5′-TCGATGG-3′ (written 3′→5′)?15views
Multiple ChoiceWhich of the following pairs of double-stranded DNA molecules would have the lower melting temperature, and why?67views
Multiple ChoiceIn the DNA double helix, what interaction primarily holds the two antiparallel strands together?8views