Griffith performed an experiment in which mice were inoculated with two harmless strains of bacteria, one that had a capsule and was heat-killed, and another with no capsule that was not pathogenic. Which statements best explain why the mice died when both harmless strains were injected together? Mark all that apply. O specialized transduction of a specific gene resulted in expression of new traits O conjugation between bacteria of the same species allowed both strains of bacteria to express a virulence factor O horizontal gene transfer between bacteria of the same species O transformation resulted in expression of a virulence factor in the living cells capsules enable bacteria to evade phagocytosis
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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