The base content of a sample of nucleic acid is as follows: A = 31%, G = 31%, T = 19%, C = 19%. What conclusion should be drawn from this information?

A) This nucleic acid is double-stranded DNA.
B) The strands in this molecule are parallel rather than antiparallel.
C) The purine/pyrimidine ratio in this molecule fits Chargaff's data.
D) This nucleic acid is made of RNA.
E) This nucleic acid is single-stranded DNA.


Answer: E

Biology & Microbiology

You might also like to view...

Human females are the ________ sex.

A) homozygous B) homogametic C) hemizygous D) heterozygous

Biology & Microbiology

Which process does not involve molecules moving across cell membranes?

A) osmosis B) facilitated diffusion C) active transport D) hydrogenation

Biology & Microbiology

What is an example of a plant disease caused by a basiodiomycete?

a. wheat rust b. ergot of rye c. chestnut blight d. Dutch elm disease e. verticillium wilt on potatoes

Biology & Microbiology

What type of cell does Ehrlichia chaffeensis infect in humans?

A. capillary endothelial cells B. B lymphocytes C. neutrophils D. monocytes E. eosinophils

Biology & Microbiology