mRNA processing in eukaryotes, introns, exons
In eukaryotes, transcription produces a pre-mRNA molecule that be processed into mature mRNA by the…
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Missense, nonsense codons
Mutations in a DNA sequence can produce errors during protein synthesis by leading to missense…
Mechanism of transcription
Transcription is the first step in gene expression, and is the process by which a…
Codon–anticodon relationship
When mRNA is translated into a polypeptide chain during translation, the codons of mRNA base…
Post-translational modification of proteins
Post-translational modifications are the chemical modifications a polypeptide chain receives after it is translated that…
Role and structure of ribosomes
mRNA is translated into a polypeptide chain (and therefore a protein) at ribosomes, complex macromolecules…
Roles of mRNA, tRNA, rRNA
Translation requires the input of a messenger RNA (mRNA) template, ribosomes made up of ribosomal…
Transfer RNA (tRNA); ribosomal RNA (rRNA)
Translation requires the input of a messenger RNA (mRNA) template (produced during transcription), ribosomes made…
Messenger RNA (mRNA)
Messenger RNA or mRNA is a type of RNA that is formed by transcription of…
Initiation and termination codons
Of the 64 possible codons present in the genetic code, three encode stop signals that…