<span>It happens through allopatric speciation. Hope this helps :)</span>
Answer:
The gene of interest from another source.
Explanation:
A plasmid is a small, circular double-stranded extrachromosomal DNA molecule within a cell particularly a bacteria cell that is physically separated from chromosomal DNA and can also replicate independently.
Expression vector is usually a plasmid (or a virus can also be utilized) constructed to allow for gene expression in cells. The vector is used to introduce a gene of interest into a target cell, and can drive the cell's mechanism for protein synthesis to produce the protein encoded by the gene, thus giving rise to the expression of the gene.
This gene of interest is integrated into the plasmid that is cut by endonucleases and then ligated using DNA ligase. Thus the expression differs from the normal plasmid in that it contains an external gene sequence.
A wisdom teeth are vestigial third molars that human ancestors used to help grinding down plant tissue. The common postulation is that the skull of human ancestor had larger jaw with more teeth, which where possibly used to help chew down foliage to compensate for a lack of ability to efficiency digest the cellulose that make up a plant cell wall.
1. Proteins are denatured which makes it impossible for them to duplicate. (Proteins, are found in DNA)
2. Differing microbial organisms have different niches.
Acidophiles= acid loving,
Thermophiles= heat loving, etc.
Does that answer you question?
