Which of the following are the bases for RNA?

• adenine, uracil, thymine, and guanine

• adenine, uracil, guanine, and cytosine

• adenine, thymine, guanine, and cytosine

• adenine, uracil, thymine, and cytosine

Which of the following is NOT a pyrimidine?

• thymine

• cytosine

• uracil

• guanine

Which of the following is a type of RNA?

• mRNA

• tRNA

• rRNA

• All of these are types of RNA

Which statement is true about RNA?

• RNA is usually single stranded and contains the base uracil

• RNA is usually double stranded and contains the base thymine

• RNA is made in the nucleus and stays there to carry out its function

• All of the above are true.

True or False: RNA uses deoxyribose sugar.

• True

• False

True or False: Transcription is the process by which the information in a strand of DNA is copied into a messenger RNA (mRNA).

• True

• False

Transcribe the following DNA strand:

ATAGC

Transcribe the following DNA strand:

ACT GTA CCA

RNA and DNA have different structures. Which of the following statements are correct?

• RNA is double stranded and DNA is single stranded.

• RNA and DNA are both single stranded.

• RNA is single stranded and DNA is double stranded.

• RNA and DNA are both double stranded.

RNA and DNA are composed of different sugars. Which of the following statements are true?

• RNA uses ribose and DNA uses deoxyribose.

• RNA uses deoxyribose and DNA uses ribose.

• DNA and RNA both use ribose sugars.

• DNA and RNA both use deoxyribose sugars.