Table of Contents
Does translation take place in the nucleus?
The eukaryotic nucleus therefore provides a distinct compartment within the cell, allowing transcription and splicing to proceed prior to the beginning of translation. Thus, in eukaryotes, while transcription occurs in the nucleus, translation occurs in the cytoplasm.
Where does translation occur in cell?
the ribosome
Where Translation Occurs. Within all cells, the translation machinery resides within a specialized organelle called the ribosome. In eukaryotes, mature mRNA molecules must leave the nucleus and travel to the cytoplasm, where the ribosomes are located.
Does translation occur in the nucleolus?
The genes that encode ribosomal proteins are transcribed outside of the nucleolus by RNA polymerase II, yielding mRNAs that are translated on cytoplasmic ribosomes. The ribosomal proteins are then transported from the cytoplasm to the nucleolus, where they are assembled with rRNAs to form preribosomal particles.
Which can leave the nucleus?
Eukaryotic DNA never leaves the nucleus; instead, it’s transcribed (copied) into RNA molecules, which may then travel out of the nucleus.
What Cannot leave the nucleus?
DNA, which contains our genetic code, is located inside the nucleus of eukaryotic organisms. DNA cannot leave the nucleus, and so to send instructions to the rest of the cell it has to be replicated, creating mRNA, which can leave the nucleus.
Where does translation take place in an eukaryotic cell?
In a eukaryotic cell, transcription occurs in the nucleus, and translation occurs in the cytoplasm. Because there is no nucleus to separate the processes of transcription and translation, when bacterial genes are transcribed, their transcripts can immediately be translated.
Which is process takes place in the nucleus transcription or translation?
Eukaryotic Cell Transcription and translation are spatially and temporally separated in eukaryotic cells; that is, transcription occurs in the nucleus to produce a pre-mRNA molecule. The pre-mRNA is typically processed to produce the mature mRNA, which exits the nucleus and is translated in the cytoplasm.
Where does the translation of tRNA take place?
The three binding sites for tRNA on ribosome are called the A, P, and E sites. Ribosomes also contain enzymes that catalyze the reaction that binds amino acids together into a polypeptide chain. Translation itself can be broke down into three steps: initiation, elongation, and termination.
Where does the first step of translation take place?
In the first step of translation, initiation factor proteins are released. These are the proteins that trigger the first steps of the translation process. Translation initiators bind to the 5′ end of mRNA and bring it over to the ribosomes. The mRNA binds to the small subunit of the ribosome and is held in place.