Does transcription occur 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 transcription occur in the nucleus?
Transcription takes place in the nucleus. It uses DNA as a template to make an RNA molecule. RNA then leaves the nucleus and goes to a ribosome in the cytoplasm, where translation occurs. Translation reads the genetic code in mRNA and makes a protein.
Where does transcription take place in the cell Why?
Transcription takes place in the nucleus. It uses DNA as a template to make an RNA (mRNA) molecule. During transcription, a strand of mRNA is made that is complementary to a strand of DNA. Figure 1 shows how this occurs.
What is made during transcription?
Transcription is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA). The newly formed mRNA copies of the gene then serve as blueprints for protein synthesis during the process of translation.
How does nucleoid different from nucleus?
A nucleus is a membrane-bound structure in which eukaryotes assemble their genetic materials. Nucleoid is a particular area in which prokaryotes assemble their genetic materials. A nucleus is well organised and is large. Nucleoid is poorly organised and is small.
Why does transcription take place in the nucleus of eukaryotes?
Transcription occurs in the nucleus of a eukaryotic cell. In this step, an enzyme called RNA polymerase reads a gene, or segment of DNA, that codes for a particular protein. It does this by unzipping the DNA helix into two strands and making an exact but opposite copy of the gene found there.
Which of the following occurs during transcription?
Which of the following processes occurs during transcription?
Transcription is the process in which a gene’s DNA sequence is copied (transcribed) to make an RNA molecule. RNA polymerase is the main transcription enzyme. Transcription begins when RNA polymerase binds to a promoter sequence near the beginning of a gene (directly or through helper proteins).
Why does transcription occur in the nucleus?
Why does transcription occur in the nucleus and not in the cytoplasm in eukaryotes? Transcription (making mRNA from DNA) needs to happen in the nucleus because that’s where the DNA is. DNA is always inside the nucleus unless the cell is dividing. The mRNA that is made here is processed before leaving the nucleus.
Where does transcription occur in the eukaryotic cell?
– in eukaryotes transcription occurs in the nucleusand translation occurs in cytoplasm what must happen to the eukaryotic RNA before it leaves the nucleus following transcription – the RNA is considered pre-RNAbefore it is processed in the nucleous What types of modifications occur to the pre-RNA in eukaryotes before it becomes mRNA
How are the transcription and translation of DNA regulated?
Learning Objectives. For a cell to function properly, necessary proteins must be synthesized at the proper time. All organisms and cells control or regulate the transcription and translation of their DNA into protein. The process of turning on a gene to produce RNA and protein is called gene expression.
Where does translation take place in the cell?
• Translation results in the synthesis of a polypeptide chain –Linear chain of amino acids whose sequence is specified by the sequence of codons in mRNA • Translation occurs at the ribosomes –Ribosomes contain several types of ribosomal RNA (rRNA) and ribosomal proteins
What is the role of RNA polymerase in transcription?
-RNA polymerase 1: transcribes rRNA genes (excluding 5s rRNA), ribosomal RNA, the catalytic component of the ribosome -RNA polymerase 2: transcribes all protein encoding genes, for which the ultimate transcript is mRNA, and transcribes some snRNAs MOST IMPORTANT RNA POLYMERASE