NEET BIOLOGY

Detailed explanation-1: -E. coli is a type of bacteria that normally lives inside our intestines, where it helps the body break down and digest food. Some types (or strains) of E. coli, though, are infectious (causing infections that can spread to others).

Detailed explanation-2: -The bacterium Escherichia coli (E. coli for short) is crucial in modern biotechnology. Scientists use it to store DNA sequences from other organisms, to produce proteins and to test protein function.

Detailed explanation-3: -Escherichia coli (E. coli) bacteria normally live in the intestines of healthy people and animals. Most types of E. coli are harmless or cause relatively brief diarrhea.

Detailed explanation-4: -Yet despite all the attention given to their harmful brethren, most E. coli are not harmful to humans, and some are even beneficial. Many of us host a population of E. coli in our gut that aids digestion and protects us from other harmful microbes.