2020HSCMultiple choice

Q16

1 mark

Question

Analysis of DNA shows that adenine and guanine always make up 50% of the total amount of nitrogenous bases in DNA. Which structural feature of DNA does this provide evidence for?
A. DNA is helical in structure.
B. DNA is always a double-stranded molecule.
C. DNA always has adenine paired with guanine.
D. DNA is made up of equal amounts of nitrogenous bases.

Try the question before revealing the answer.

Syllabus alignment

Module 5 · Heredity

DNA and Polypeptide SynthesisModel and compare the forms of DNA in eukaryotes and prokaryotes.

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