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translation of mRNA occurs in the cytoplasm
Ardella Ernser
Wiki User
∙ 13y ago3 major things happen in RNA processing; a 5' cap is added, a poly-A tail is added, and the RNA is (possibly) spliced.
1. The 5' cap, a methylated quanine (G) nucleotide, is added to the pre-mRNA (or primary transcript) after transcription of the first 20 to 40 nucleotides. The cap serves as both protection, especially from RNases that catalyze the dismantling of RNA, and identification by the ribosome.
2. the 3' end of the mRNA must also be covered; it is covalently bonded to a poly-A tail in a process called polyadenylation. A poly-A tail is what it sounds like - a long chain of adenine (A) nucleotides... often several hundred. The tail serves to promote export from the nucleus and translation and also plays a role in the mRNA's life span. The longer the chain, the longer the life span.
3. We've dealt with the beginning and we've dealt with the end, splicing is what happens in the middle. segments of RNA which will not ultimately be translated are looped and cut from the rest of the RNA which is then rejoined. These portions of DNA are called introns. The parts that are coded for are known as exons.
Splicing is an interesting process that introduces the spliceosome the complex responsible for cutting out the intron and joining the exons. It is made up of protein and RNA (like the ribosome, it's equivalent in size). One of these proteins is called the snRNP (pronounced snurp :D), small nuclear ribonucleoprotein, which recognize the beginnings and ends of introns, also known as splice sites. As the name implies, they are made up of RNA and protein. The 150ish-nucleotide-long RNA is known as snRNA, small nuclear RNA. It is the snRNA that binds to the splice site (it's likely the complimentary to the splice site).
Splicing allows for a variety of proteins (likely structurally similar) to come from a single gene.
Wiki User
∙ 13y agoYes, transcription takes place in the nulceus but once the RNA has been maunfactured, it leaves the nucleus via the nulclear pores and enters the cytoplasm where protein synthesis takes place.
Wiki User
∙ 14y agoIn the cytoplasm in prokaryotes and inside the nucleus in eukaryotes.
Wiki User
∙ 9y agoRNA replication takes place in the nucleus. The transcription occurs in three sequential steps: initiation, elongation and finally termination.
Wiki User
∙ 11y agoAll RNA processing takes place in the nucleus
Wiki User
∙ 9y agoIt takes place in cell's nucleus.
Wiki User
∙ 11y agothe nucleus
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Where transcription of mrna take place?
In eukaryotic cells, transcription occurs in the cell nucleus. In prokaryotic cells, which do not have a nucleus, transcription occurs in the cytoplasm.
Does DNA replication take place in the cytoplasm of eukaryotic cells?
No, DNA replication takes place inside the nucleus during S phase of cell cycle.
Where in an eukaryotic cell does anaerobic respiration take place?
The anaerobic phase of cellular respiration is known as glygolysis. This is where glucose molecules are broken down into pyruvic acid.During this process, 2 molecules of adenosine triphosphate (ATP) is produced.
Where does the process of transcription take place in eukaryotic cells?
Transcription is recording what has been said in the same language. Translation is conversion from one language to another.
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.
What cells does respiration take place in?
Cellular respiration takes place in all living cells , both prokaryotic cells and in eukaryotic cells.
In eukaryotic cells where does cellular respiration mostly take place?
Mitochondria
Where in the cell do translation and transcription take place?
In eukaryotic cells, transcription occurs in the nucleus from which the transcript it transported to the cytoplasm where translation occurs. In prokaryotic cells, transcription and translation both take place in the cytoplasm.
Where transcription of mrna take place?
In eukaryotic cells, transcription occurs in the cell nucleus. In prokaryotic cells, which do not have a nucleus, transcription occurs in the cytoplasm.
Where in the cell does the aerobic cellular respiration occur or take place?
Prokaryotic and animal cells. As well as plant cells which preform Cellular Respiration after photosynthesis. Basically, all living organisms perform Cellular Respiration.
Does DNA replication take place in the cytoplasm of eukaryotic cells?
No, DNA replication takes place inside the nucleus during S phase of cell cycle.
In human and many other eukaryotic species cells the nuclear membrane has to disappear in order for what to take place?
attachment of mitotic spindle to kinetochores
What are the eukaryotic cell function?
-Nucleus directs the cells activities -Cell respiration takes place in mitochondria -Ribosomes manufacture proteins and take place in replication, transcription, and translation.
Why metabolism in eukaryotic cells depends on the endoplasmic reticulum?
Prokaryotic cells don't depend on the ER (endoplasmic reticulum) because their metabolism can take place in the cytoplasm, therefore defeating any need for an ER.
Chloroplasts and mitochondria are?
They are eukaryotic organells.Chloroplast conducts photosynthesis.Respiration take place in mitochondria.
Where in an eukaryotic cell does anaerobic respiration take place?
The anaerobic phase of cellular respiration is known as glygolysis. This is where glucose molecules are broken down into pyruvic acid.During this process, 2 molecules of adenosine triphosphate (ATP) is produced.
What part of the eukaryotic cell does aerobic respiration take place?
Cytoplasm and mitochondria
