Many scientists believed it was these "germs" that spread disease and not the air. Robert Koch was able to isolate microorganisms from sheep that had contracted anthrax. He grew these bacteria and then injected them in mice. The mice became sick with anthrax. REASONING: If microbes (germs) were responsible for causing anthrax, then... a) sheep and mice that were in the same area would both get sick b) sheep would get sick, but not mice c) microbes from sick sheep could make mice sick
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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