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.
Shown below are three genes (gene 1, gene 2, and gene 3) located on the same bacterial chromosome.
- a) Indicate where on the diagram you would find the following for each gene:
- Promoter (p1 for gene 1, p2 for gene 2, and p3 for gene 3)
- Transcription termination site (tts1, tts2, and tts3)
- Start codon (start1, start2, and start3)
- Stop codon (stop1, stop2, and stop3)
- Template strand (ts1, ts2, and ts3), the DNA strand that directs RNA synthesis
- Be sure to indicate the component on the appropriate molecule (DNA or RNA).
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