Which of the following accurately describes the structure of DNA?

a. DNA is in the form of antiparallel strands twisted as a double helix.

b. DNA is made up of nucleotides, containing a 3-carbon sugar, a phosphate group, and base.

c. A always pairs with C, and G always pairs with T.

d. DNA consists of four bases: A, G, C, and U.

Question

Holly Farmer

Biology

5 July, 22:32

Which of the following accurately describes the structure of DNA?

a. DNA is in the form of antiparallel strands twisted as a double helix.

b. DNA is made up of nucleotides, containing a 3-carbon sugar, a phosphate group, and base.

c. A always pairs with C, and G always pairs with T.

d. DNA consists of four bases: A, G, C, and U.

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Answers (2)

Know the Answer?

Shayna · Answer 1

Among the choices given, the one that accurately describes the structure of DNA is D. DNA is in the form of anti-parallel strands twisted as a double helix.

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Maria Lamb · Answer 2

option B. is wrong because nucleotides made of 5 - carbon sugars, not 3-C. option C is wrong because Apairs with T and C pairs with G not the other way around. option D is wrong as DNA consists of A, G, C and T. U is found in RNA. the correct answer is A. DNA is in the form of antiparallel strands twisted as a double helix. nucleotides together make strands, 2 of these strands which are antiparallel to each other twist around each other forming a double helix.

therefore A is the correct answer