Table of Contents
- 1 Can you use the same mRNA more than once?
- 2 Can an mRNA be reused?
- 3 How many times can an mRNA be used to make the same protein?
- 4 Is mRNA translated once?
- 5 What happens to the mRNA after transcription?
- 6 Can a single strand of mRNA be used to produce multiple molecules of the same protein?
- 7 What happens after mRNA is translated?
- 8 Is mRNA involved in transcription or translation?
Can you use the same mRNA more than once?
Can a single mRNA be read more than once? Explain. more than once because the process is repeated until the entire message of the molecule is read and all amino acids are brought in sequence, which forms a polypeptide chain.
Can an mRNA be reused?
This mRNA degradation sequence also adds another layer of regulation of mRNA function. Depending on their environment, cells can either reuse or rescue the poly(A) shortened mRNA for later translation or degrade that mRNA permanently.
How many times can mRNA be used?
However, errors occurring during transcription often elicit more dire consequences than those occurring during translation because individual mRNAs can be translated up to 40 times (primary sources), resulting in a burst of flawed proteins.
How many times can an mRNA be used to make the same protein?
Another fascinating result was that proteins were about 900 times more abundant than the mRNAs used to make them – one way to think of this is that on the average, a single mRNA is used to manufacture about 900 copies of the corresponding protein.
Is mRNA translated once?
Messenger RNA (mRNA) mediates the transfer of genetic information from the cell nucleus to ribosomes in the cytoplasm, where it serves as a template for protein synthesis. Once mRNAs enter the cytoplasm, they are translated, stored for later translation, or degraded.
Can the same pieces of DNA and RNA be used for transcription and translation multiple times?
So, yes, it is possible for a gene to be read in both directions (both strands) and code for different proteins.
What happens to the mRNA after transcription?
After the transcription of DNA to mRNA is complete, translation — or the reading of these mRNAs to make proteins — begins. Recall that mRNA molecules are single stranded, and the order of their bases — A, U, C, and G — is complementary to that in specific portions of the cell’s DNA.
Can a single strand of mRNA be used to produce multiple molecules of the same protein?
This group of ribosomes, also known as a polysome, allows for the simultaneous production of multiple strings of amino acids, called polypeptides, from one mRNA. When released, these polypeptides may be complete or, as is often the case, they may require further processing to become mature proteins.
How might a single mRNA produce more than one protein product?
This process is known as splicing. RNA splicing involves the removal or “splicing out” of certain sequences in the mRNA, referred to as intervening sequences, or introns. Splicing different combinations of exon together can lead to the production of a variety of different proteins being produced from a single gene.
What happens after mRNA is translated?
Once mRNAs enter the cytoplasm, they are translated, stored for later translation, or degraded. mRNAs that are initially translated may later be temporarily translationally repressed. All mRNAs are ultimately degraded at a defined rate.
Is mRNA involved in transcription or translation?
The process of translation can be seen as the decoding of instructions for making proteins, involving mRNA in transcription as well as tRNA. The genes in DNA encode protein molecules, which are the “workhorses” of the cell, carrying out all the functions necessary for life.