What steps convert RNA to mRNA?
During transcription, the DNA of a gene serves as a template for complementary base-pairing, and an enzyme called RNA polymerase II catalyzes the formation of a pre-mRNA molecule, which is then processed to form mature mRNA (Figure 1).
What are the steps of mRNA processing?
Eukaryotic mRNA precursors are processed by 5′ capping, 3′ cleavage and polyadenylation, and RNA splicing to remove introns before being transported to the cytoplasm where they are translated by ribosomes.
What are the steps of translation of mRNA?
Translation of an mRNA molecule by the ribosome occurs in three stages: initiation, elongation, and termination.
What are the 7 steps of translation?
Terms in this set (7)
- mRNA binds to the small subunit of the ribosome.
- tRNA with anticodon complementary to the first codon to be translated on the mRNA binds to the ribosome.
- a second tRNA with an anticodon complementary to the second codon on the mRNA then binds.
What are three major steps involved in mRNA processing?
what are the three major steps of mRNA processing? Splicing, adding of the cap and tail, and the exit of the mRNA from the nucleus.
What is the first mRNA processing step?
The first step of RNA processing, termed capping, occurs as a new pre-mRNA emerges from RNA polymerase II. A guanine nucleotide is added to the 5′ end of the pre-mRNA and then methylated. The presence of the cap protects the mRNA from degradation3.
What are the 5 steps of translation?
Translation (Protein Synthesis)
- Initiation. In this step the small subunit part of the ribosome attaches to the 5′ end of the mRNA strand.
What are the basic steps of translation?
Translation is the process by which the genetic code contained within a messenger RNA (mRNA) molecule is decoded to produce a specific sequence of amino acids in a polypeptide chain. It occurs in the cytoplasm following DNA transcription and, like transcription, has three stages: initiation, elongation and termination.