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1. Transcription
Before the synthesis of a protein begins, the corresponding RNA molecule is produced by RNA transcription. One strand of the DNA double helix is used as a template by the RNA polymerase to synthesize a messenger RNA (mRNA). This mRNA migrates from the nucleus to the cytoplasm. During this step, mRNA goes through different types of maturation including one called splicingwhen the non-coding sequences are eliminated. The coding mRNA sequence can be described as a unit of three nucleotides called a codon.
2. Translation
The ribosome binds to the mRNA at the start codon (AUG) that is recognized only by the initiator tRNA. The ribosome proceeds to the elongation phase of protein synthesis. During this stage, complexes, composed of an amino acid linked to tRNA, sequentially bind to the appropriate codon in mRNA by forming complementary base pairs with the tRNA anticodon. The ribosome moves from codon to codon along the mRNA. Amino acids are added one by one, translated into polypeptidic sequences dictated by DNA and represented by mRNA. At the end, a release factor binds to the stop codon, terminating translation and releasing the complete polypeptide from the ribosome.
One specific amino acid can correspond to more than one codon. The genetic code is said to be degenerate.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agofolding
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What is the last stage in protein synthesis which amino acids are assembled by tRNA?
translation
When the protein is synthesised?
Proteins are synthesized at the ribosomes during the translation stage of protein synthesis.
When is protein synthesised?
Proteins are synthesized at the ribosomes during the translation stage of protein synthesis.
Where does RNA and protein synthesis take place in prokaryotes and eukaryotes?
In prokaryotes, RNA synthesis and protein synthesis takes place in the cytoplasm. In eukaryotes, RNA is produced in the cells nucleus and then moves to the cytoplasm to play a role in the production of protein.
Why is the S-phase called the synthesis stage?
Because protein synthesis is taking place.
Why do the body need protein synthesis while the body is also synthesis protein?
why does the body need protein synthesis while the also synthesis protein?
What is the product of protein synthesis?
A protein. That's what protein synthesis means.
The stage of the cell cycle when DNA replication occurs is?
The "S" phase, during which protein synthesis occurs.
What is the sight for protein synthesis?
Ribosomes are site of protein synthesis .
Is protein synthesis is a catabolic reaction?
No, protein synthesis is endergonic.
When does the cell carry on normal activities such as protein synthesis?
It carries on normal activities during the stage called G1.
Where is the majority OF protein synthesis occurs?
Ribosomes are the site of protein synthesis
