1. In E.coli transcription of the Lac Operon is known to be under Global control. For this operon explain the mechanisms of both negative and positive control (be sure to identify relevant regulatory molecules and operon regions). A. Positive Transcriptional Control: B. Negative Transcriptional Control: C. If E.coli is grown in media containing both glucose and lactose when would you expect to see beta-galactosidase (catalyzes the hydrolysis of lactose) produced?
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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