Multiple ChoiceWho created the first widely accepted accurate double-helix model of DNA structure in 1953?14views
Multiple ChoiceIn the structure of DNA, which pentose sugar is present in the nucleotide backbone?15views
Multiple ChoiceIn the context of DNA structure, what are the monomers (basic repeating subunits) of DNA?13views
Multiple ChoiceIn the context of DNA and RNA structure, what is the monomer (basic repeating subunit) of both DNA and RNA?20views
Multiple ChoiceGenes are strands of ________ found on chromosomes in the nucleus of a living cell.68views
Multiple ChoiceIn an analysis of the nucleotide composition of DNA, which of the following statements is always true for double-stranded DNA?77views
Multiple ChoiceIn the DNA double helix, what structural feature gives DNA an overall negative charge at physiological pH?21views
Multiple ChoiceFor the eukaryotic DNA sequence shown below, which of the following correctly describes the directionality of the two strands in a double helix?74views
Multiple ChoiceIn the DNA double helix, what molecules form the sides of the “ladder” (the backbone)?11views