"gene" in inglés with examples - Collocation dictionary inglés
- If the first step is positive, a second test, a PCR assay targeting the toxin genes, is performed.
- For example, a laser beam or a controllable gene promoter for a toxin gene can be used to destroy a selected amount of cells.
- The advantage of this gene is that insecticidal toxin genes or other various herbicides can be engineered in the bacterial DNA.
- Its cereus cousin has a similar main chromosome, but its plasmids lack the toxin genes that make anthrax so deadly.
- Thus, for example in Escherichia coli, identifying strains carrying toxin genes is more important than having a population genetics-based evaluation of prevalent strains.
- Unusually, the toxin gene is encoded by a bacteriophage (a virus that infects bacteria).
- In 1951, Freeman found that the toxin gene was not encoded on the bacterial chromosome, but by a lysogenic phage infecting all toxigenic strains.
- However, these integrations sites are degraded indicating that the C. botulinum acquired the toxin genes quite far into the evolutionary past.
- It is proposed that Photorhabdus species acquired the toxin genes by horizontal gene transfer during evolution.
- The study has uncovered toxin genes and other genes that may be responsible for the virulence of the fungus.
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