Common bacteria used is genetic engineering is -

Correct option is A

The correct answer is (a) E. Coli. Escherichia coli (E. Coli) is a common bacterium used in genetic engineering due to its well-known genetics, rapid growth, and ability to express foreign genes. E. Coli is used extensively in research and biotechnology for cloning, gene expression, and protein production.
Important Key Points:
· E. Coli is a model organism in genetic engineering and molecular biology.
· It is widely used for gene cloning and recombinant protein production.
· The bacterium’s genome is well understood, making it ideal for manipulation.
· E. Coli can express foreign genes, producing proteins for research or pharmaceutical purposes.
· It is also used in creating genetically modified organisms (GMOs).
· E. Coli’s role in biotechnology has led to significant advancements in medicine and agriculture.
Knowledge Booster:
· Spirillum: A genus of spiral-shaped bacteria, not commonly used in genetic engineering.
· Rhizobium: A genus of bacteria involved in nitrogen fixation in plants, not used in genetic engineering.
· Diplococcus: Refers to a pair of spherical bacteria, not typically used in genetic engineering.