A tRNA, like the one modeled below, is made from a single strand of RNA (just like an mRNA is). However, the strand takes on a complex 3D structure because base pairs form between nucleotides …

Each tRNA has an anticodon, a set of three nucleotides that binds to a matching mRNA codon through base pairing. The other end of the tRNA carries the amino acid that's specified by the codon.

In initiation, the ribosome assembles around the mRNA to be read and the first tRNA (carrying the amino acid methionine, which matches the start codon, AUG). This setup, called the initiation complex, is …

tRNA plays a crucial role in protein synthesis. During translation, tRNAs carry amino acids to the ribosome, where they are added to the growing polypeptide chain.

virus ate in which kingdom? what is ssRNA and stDNA ? what is tRNA? (3 votes) more

If there is little tryptophan, the ribosome will stall at the Trp codons (waiting for a Trp-carrying tRNA) and will be slow to finish translation of the leader. Why does it matter if the ribosome translates the leader …

Translation occurs in ribosomes, which are cellular structures made of proteins and ribosomal RNA (rRNA). Here, mRNA is converted into amino acid sequences, forming polypeptides. Transfer RNA …

One of the stop codons, UGA, codes for the 21st amino acid, selenocysteine. But how does the tRNA know whether to add selenocysteine (and continue translating) or to stop?

When does the tRNA know when to use AUG as a start codon and when to code Methionine? Are there other influencers

An in-depth looks at how transcription works. Initiation (promoters), elongation, and termination.