what could have happened to the isolates when she re-streaked them repeatedly and recommend a solution to prevent this from occurring in the future and give explanation why it is more advantageous.
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.
Question -Esther is completing her PhD project in bacterial distribution in mangroves and their
biochemical characteristics. She manages to isolate and identify around 80 different
bacterial species from the various mangrove sites. She preserves the isolates by growing
them on a tryptic soy agar supplemented with sea salt and re-streaks them every week. After
8 months she notices that some of the isolates have changed their genetic sequence when
compared to the initially identified sequence. Using a diagram explain what could have
happened to the isolates when she re-streaked them repeatedly and recommend a solution
to prevent this from occurring in the future and give explanation why it is more
advantageous.
Step by step
Solved in 3 steps
