During protein synthesis, ribosomes: a. translate tRNA into protein. b. transcri

Question

During protein synthesis, ribosomes: a. translate tRNA into protein. b. transcribe DNA into mRNA. c. translate mRNA into tRNA. d. attach to the mRNA molecule and travel along its length to produce a polypeptide. d. attach to the mRNA molecule and travel along its length to produce a polypeptide. e. attach to the DNA molecule and travel along its length to produce an mRNA molecule. Molecular chaperones assist in the folding of newly synthesized mRNA True False Initiation of transcription requires: a. a DNA primer. b. a promoter sequence. c. DNA polymerase. d. an RNA primer e. Okazaki fragments. Introns in pre-mRNA: a. move within the mRNA, giving rise to new exon combinations. b. code for important amino acid sequences. c. code for specific protein domains. d. are spliced out of the message. e. protect pre-mRNA from enzyme degradation.

Explanation / Answer

28. d: attach to the mRNA molecule and travel along its length to produce a polypeptide

29... false

30. b... a promoter sequence

31...d) are spliced out of a message

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