객관식In the structure of DNA, what does the backbone of the DNA double helix primarily consist of?91views
객관식In terms of overall electrostatic charge at physiological pH, what is the net charge of DNA and what structural feature is primarily responsible for it?83views
객관식In the context of DNA structure, what are the monomers (basic repeating subunits) that make up a DNA molecule?103views
객관식In the DNA double helix, what interaction primarily holds the two antiparallel strands together?79views