Recombinant expression in prokaryotic systems has numerous advantages when compared to eukaryotic systems, one of which is the ability to produce the protein of interest at high levels. For this, it is essential to use strong promoters and genetically modified bacteria capable of overexpressing the exogenous gene. Therefore, mark the alternative that best represents the set of bacterial promoters/strains for protein overexpression. * A)use of the T7 promoter, whose induction occurs by the addition of IPTG in the culture medium, and use of the Escherichia coli strain BL21DE3. B)use of the T7 promoter, whose induction occurs by the addition of IPTG in the culture medium, and use of the Escherichia coli DH5 strain. C)use of the lac promoter, whose induction occurs by the addition of IPTG in the culture medium, and use of the Escherichia coli DH5 strain. D) use of the constitutive trp promoter, whose induction occurs by the addition of the amino acid Tryptophan in the medium, and use of the Escherichia coli strain BL21DE3
Bacterial Genomics
The study of the morphological, physiological, and evolutionary aspects of the bacterial genome is referred to as bacterial genomics. This subdisciplinary field aids in understanding how genes are assembled into genomes. Further, bacterial or microbial genomics has helped researchers in understanding the pathogenicity of bacteria and other microbes.
Transformation Experiment in Bacteria
In the discovery of genetic material, the experiment conducted by Frederick Griffith on Streptococcus pneumonia proved to be a stepping stone.
Plasmids and Vectors
The DNA molecule that exists in a circular shape and is smaller in size which is capable of its replication is called Plasmids. In other words, it is called extra-chromosomal plasmid DNA. Vectors are the molecule which is capable of carrying genetic material which can be transferred into another cell and further carry out replication and expression. Plasmids can act as vectors.
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