RNA Test Questions – Molecular Biology Practice Exam & Study Guide

RNA Test Questions – Molecular Biology Practice Exam & Study Guide


RNA contains the sugar

a. ribose.

b. deoxyribose.

c. glucose.

d. lactose. - ANS ✔✔a



Unlike DNA, RNA contains

a. adenine.

b. uracil.

c. phosphate groups.

d. thymine. - ANS ✔✔b



Which of the following are found in both DNA and RNA?

a. ribose, phosphate groups, and adenine

b. deoxyribose, phosphate groups, and guanine

c. phosphate groups, guanine, and cytosine

d. phosphate groups, guanine, and thymine - ANS ✔✔c



Which nucleotide in Figure 13-1 indicates the nucleic acid above is RNA?

a. uracil

b. guanine

c. cytosine

d. adenine - ANS ✔✔a

, Which of the following is true?

a. RNA is usually single-stranded.

b. DNA is usually single-stranded.

c. DNA contains uracil.

d. RNA contains thymine. - ANS ✔✔a



Which type of RNA brings the information in the genetic code from the nucleus to other parts of
the cell?

a. rRNA

b. tRNA

c. mRNA

d. RNA polymerase - ANS ✔✔c



Which of the following is true of transcription?

a. In eukaryotes, transcription takes place in the cytoplasm and requires many enzymes.

b. RNA polymerase recognizes and binds to specific regions of the DNA called introns.

c. RNA editing removes the exons from pre-mRNA, leaving only the introns in the final molecule.

d. RNA polymerase can make many molecules of RNA from a single DNA sequence. - ANS ✔✔d



Which of the following statements is true of eukaryotic DNA?

a. A promoter is part of an intron.

b. An intron is part of a promoter.

c. Introns are sequences of DNA.

d. Exons are edited out of pre-mRNA. - ANS ✔✔c



Which molecules are involved in protein synthesis?