Pretest

Question 1

DNA is a nucleic acid polymer composed of which repeating structural unit?

Revolt · Accepted Answer

nucleotides

Question 2

Which base is found only in RNA?

Revolt · Accepted Answer

uracil

Question 3

Which of these could be a nucleotide of RNA?

Revolt · Accepted Answer

ribose plus phosphate group plus uracil

Question 4

On an RNA molecule, which would base pair with adenine?

Revolt · Accepted Answer

uracil

Question 5

What did Chargaff discover while studying bases in the DNA of organisms?

Revolt · Accepted Answer

The ratios of thymine and adenine were similar, as were the ratios of guanine and cytosine.

Question 6

What is the role of RNA?

Revolt · Accepted Answer

to move information from the nucleus to the ribosomes for protein synthesis

Question 7

Which structural characteristic is seen in RNA but not in DNA?

Revolt · Accepted Answer

a single strand

Question 8

Which structural component is found in DNA but not in RNA?

Revolt · Accepted Answer

deoxyribose

Question 9

Which discovery is attributed to Phoebus Levene?

Revolt · Accepted Answer

identification of ribose and deoxyribose

Question 10

Where is the DNA located in a eukaryotic cell?

Revolt · Accepted Answer

nucleus

Pretest Answers