Final answer:
The genus and species of Escherichia coli are Escherichia and coli, making the correct answer option 1: Genus: Escherichia, Species: coli.
Step-by-step explanation:
The genus and species of Escherichia coli are Escherichia and coli, respectively. Hence, the correct answer is option 1) Genus: Escherichia, Species: coli. This naming follows the binomial nomenclature system that is used in the biological classification of organisms, where the genus name is capitalized and the species name is lowercase. Additionally, after the first mention of an organism's full scientific name, it is common practice to abbreviate the genus to the first initial followed by a period, resulting in E. coli for Escherichia coli.