Multiple ChoiceIn the DNA double helix, what type of bonds hold complementary nitrogenous bases together across the two strands?11views
Multiple ChoiceIn DNA structure, what type of bond holds complementary nitrogenous bases (A with T, and G with C) together across the two strands?3views
Multiple ChoiceIn DNA structure, a nucleotide of DNA may contain which of the following components?28views
Multiple ChoiceThe size of a nucleic acid is typically expressed as the number of which of the following in it?66views
Multiple ChoiceIn DNA structure, which two molecules form the sugar-phosphate backbone of DNA?17views
Multiple ChoiceWilkins and Franklin studied the structure of DNA primarily using which technique?11views
Multiple ChoiceIn DNA structure, what is the name of the “twisted ladder” shape formed by two antiparallel strands?9views
Multiple ChoiceWhich of the following lists correctly identifies the four nitrogenous bases found in DNA?44views
Multiple ChoiceWhich feature of the DNA double helix model best illustrates how biological information is coded in a DNA molecule?77views
Multiple ChoiceIn the context of DNA structure, DNA is made of repeating units of building blocks called what?12views