Question

which of the following brings amino acids to the growing chain during transcription?
codon
trna
mrna

Explanation:

During translation (not transcription as the question has a mis - statement in the context, but among the options for the concept of bringing amino - acids to the growing chain), tRNA (transfer RNA) carries specific amino acids to the ribosome where they are added to the growing polypeptide chain according to the codons on mRNA. A codon is a sequence of three nucleotides on mRNA that codes for a particular amino - acid, and mRNA (messenger RNA) carries the genetic information from DNA for protein synthesis but does not directly bring amino - acids.

Answer:

B. tRNA