Can there only be one promoter and terminator on an mRNA

The words of high school biology should be understood like this:

There is no promoter on the mRNA.

and terminators, promoters and terminators are located only on DNA (genes).

An mRNA can have one or more start codons on it.

and stop codons, start codons and stop codons are only located on the mRNA, not on the DNA.

Hope it helps

This one depends on it.

There are many types of promoters, with pre-gene promoters, as well as intra-gene promoters. The promoter in the gene can appear in the mRNA, but the pre-gene promoter is generally not considered to be included in the mRNA, but there are also some sequences located in the 5'utr, which is not necessarily, and the promoter is not thoroughly studied at present.

In the case of terminators, it depends on whether the mRNA is listed with multiple cisstronic or single cisstronic sons. It is generally believed that a cis-trans with a stop codon. Eukaryotic cells are mostly cistrons, so there is a terminator.

Whereas, prokaryotes are mostly polycistronic and should have multiple terminators on one mRNA.

Wrong. A single mRNA can attach multiple ribosomes, so there are multiple promoters and multiple terminators.

There is no promoter on the mRNA. The promoter is on the DNA. There is more than one stop codon, but only one works.

In the mRNA of a prokaryotic cell, there is a lot of information that contains multiple proteins, and correspondingly, there are multiple promoters and terminators.

Summary. Pro, yes, promoters and terminators are associated with exogenous DNA expression. Promoters and terminators are the ones that help in the expression of foreign DNA, that is, they control the transcription process, the promoter makes the transcription start, and the terminator stops the transcription.

Pro, yes, promoters and terminators are associated with exogenous DNA expression. Promoters and terminators are the ones that help in the expression of foreign DNA, that is, they control the transcription process, the promoter makes the transcription start, and the terminator stops the transcription.

So what kind of replication are terminators and promoters involved in?

Pro, terminators and promoters are transcriptional and have nothing to do with replication.

Then please explain a question for me.

The exogenous DNA must be located between the promoter and terminator of the recombinant plasmid in order to replicate.

That's right.

Dear, this sentence is not true.

The exogenous DNA must be located between the promoter and terminator of the recombinant plasmid in order to be expressed.

The exogenous DNA must be located between the promoter and terminator of the recombinant plasmid for transcription and translation.

That's right.

The promoter and terminator are related to the expression of exogenous DNA and control the transcription process, and for replication to occur, the origin of replication is required. What is the meaning.

I don't understand. Dear, what you just said is wrong, promoters and terminators make DNA expression, gene expression includes transcription and translation, promoters and terminators control the transcription process, and replication has nothing to do with it.

The promoter must be transcribed into mRNA, and it must be transcribed into the starting code! There are two initiation codes, which are transcribed from two different promoters!

But the terminator is also to be transcribed into mRNA, that is, it is transcribed into the stop code on mRNA, but the stop code does not represent any amino acids, that is, it stops when it encounters the stop code translation! There are three termination passwords, all of which are transcribed by different terminators!

The promoter and the terminator are genetically present, and if you look at the gene structure in the diagram below, you can see it.

Promoter terminators do not transcribe mRNA start codons and stop codons are transcribed from DNA coding regions.

RNA can be transcribed, and the product has no promoter terminator.

The promoter is located in structural gene 5'The DNA sequence upstream of the end activates the RNA polymerase, making it accurately bind to the template DNA and have the specificity of transcription initiation.

The terminator is the DNA sequence that gives the RNA polymerase the signal to stop the transcription.

The two are already present in the mother's DNA and together determine the transcription of genes.

The genes in the offspring contain promoters and terminators, both inherited from the mother.

On DNA, it is a sequence of nucleotides.