AP Biology DNA Structure and Function — practice questions
18 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice AP Biology DNA Structure and Function in the app →DNA was first isolated from white blood cells in the 1860s by:Griffith named his isolated nuclear chemicals nuclein because they came from the cell's:How many hydrogen bonds hold an adenine and thymine pair together?How many hydrogen bonds hold a cytosine and guanine pair together?The diameter of the DNA double helix is:Griffith's 1928 experiments with Streptococcus pneumoniae demonstrated:Griffith's R strain of pneumococcus is called rough because it:Injecting mice with live R strain mixed with heat-killed S strain resulted in:The follow-up experiment that identified the transforming principle showed transformation failed when which moThe Hershey and Chase experiment could label phage DNA specifically using radioactive phosphorus because:In the Hershey and Chase centrifugation, the heavier bacterial cells ended up in the:The two strands of a DNA double helix are antiparallel, meaning one runs 5' to 3' and the other runs:Purines differ from pyrimidines structurally because purines have:Each base pair sits how far from the next along the helix?How many base pairs are there in one complete turn of the DNA helix?The phosphodiester bond of the DNA backbone joins which two carbons?Rosalind Franklin did not share the Nobel Prize for the DNA structure because:A limitation of Sanger's original sequencing method is that it can read: