The expressed gene must be incorporated into the bacterial chromosome, but its promoter region should be replaced with a bacterial promoter.
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What about bacterial chromosome?</h3>
- The term "nucleoid" refers to a bacterial chromosome.
- It has genetic material inside and is a strange shape. It may also be known as a genophore.
- Both transcriptional activators and repressors control gene expression in eukaryotic cells.
- Eukaryotic repressors bind to specific DNA sequences and prevent transcription, just like their prokaryotic counterparts.
- Since transcription and translation are physically distinct processes, eukaryotic gene expression is more complex than prokaryotic gene expression.
- Eukaryotic cells, as opposed to prokaryotic cells, have a wide range of levels at which they can control gene expression.
- While transcription and translation can both happen at the same time in bacteria, in eukaryotes, transcription takes place in the nucleus and translation happens in the cytoplasm.
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Question: It is often desirable to express eukaryotic genes in bacteria, which can make a protein of interest quickly and cheaply. What is TRUE about this kind of genetic transformation?
a. The expressed gene and the genes for all of its regulatory elements must be incorporated into the bacterial chromosome.
b. Only polycistronic genes are capable of being expressed in a bacteria.
c. The expressed gene and the gene for RNA Polymerase II must both be incorporated into the bacterial genome.
d. Only the transcribed region of the gene should be incorporated into the bacterial genome. No promoter is necessary to transcribe a transformed gene.
e. The expressed gene must be incorporated into the bacterial chromosome, but its promoter region should be replaced with a bacterial promoter.
That's right, what really happens is that the cell needs a "trash can", just like we do, because sometimes, things can go wrong along the process.
The processes that the lysosomes can be involved are quite a lot, but the main one is the protein making. Why? Well, it's simple, there's a chance of mistake in each part of a protein our cells make through all the process, and when this happens, the cell recognizes it before this protein goes outside the cell, after this recognition, some flags are put in it to mark it.
This mark will work in a way that the protein will go into the lysosome, and in a lysosome, there are several kinds of enzymes, so this protein can be degrated into little components again, the amino acids, and these can be used again in the process of making a new one. This is the process of recycling the protein, whether it's a misfolded protein or even the ones that the body won't need it for now.
Answer:
d) B and C are both true
Explanation:
Prokaryotic cells: The term "prokaryotic cells" are described as cells that don't consist of "membrane-bound organelles" or "true nucleus". However, the organisms that come under the domain of Archaea and bacteria tend to possess prokaryotic cells and it has been described that organisms that consist of prokaryotic cells are abundant in nature and make most of the Earth Biomass. Prokaryotic cells don't possess the nucleus rather have one chromosome.
In the question above, the correct answer is option D.
