DNA vs. RNA Processes

What is the primary function of DNA in a cell?

• To carry amino acids to the ribosome

• To hold the genetic code for proteins

• To synthesize lipids

• To transport oxygen

Tags

NGSS.HS-LS1-1

Which of the following bases is not found in RNA?

• Adenine (A)

• Thymine (T)

• Uracil (U)

• Cytosine (C)

What is the role of mRNA in protein synthesis?

• To unwind the DNA double helix

• To carry instructions from DNA to the ribosome

• To add nucleotides to a growing DNA strand

• To link DNA fragments together

Tags

NGSS.HS-LS1-1

What is a codon?

• A single nucleotide

• A three-nucleotide sequence on mRNA

• A protein monomer

• An enzyme that synthesizes RNA

Which enzyme is responsible for unwinding the DNA double helix during replication?

• DNA polymerase

• RNA polymerase

• DNA helicase

• DNA ligase

What is the process of synthesizing an RNA molecule from a DNA template called?

• Translation

• Replication

• Transcription

• Mutation

Which enzyme adds nucleotides to a growing DNA strand?

• DNA helicase

• RNA polymerase

• DNA polymerase

• DNA ligase

What is the role of RNA polymerase?

• To unwind the DNA double helix

• To link DNA fragments together

• To link together RNA nucleotides during transcription

• To decode mRNA into amino acids

What is the process of decoding an mRNA message into amino acids called?

• Transcription

• Translation

• Replication

• Mutation

Which enzyme links DNA fragments together?

• DNA helicase

• RNA polymerase

• DNA polymerase

• DNA ligase