6. Does this data support a hypothesis that some resistance genes evolved in bacteria that were not exposed to modern antibiotics? Why or why not? 7. Did any antibiotics affect Gram-positive and Gram-negative strains very differently? What is a possible explanation for this? 8. Which feature (antibiotic target) of bacteria seems to be the most resistant to antibiotics? Why might that be? 9. Thinking about the cellular features that antibiotics target, why do you think that antibiotics only harm bacterial cells and not your own human cells?
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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Introduction
Antibiotics are antimicrobial substances that are effective against microorganisms. Antibiotic drugs are widely utilised in the treatment and prevention of bacterial infections since they are the most common form of antibacterial agent. Bacteria may be killed or inhibited by these drugs.
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