1. Which of the following are the main properties of the members of family Enterobacteriaceae?They are: 1. gram -negative rods 2. glucose.positive 3. facultative anaerobes 4. oxidase -negative

The correct answer is: 1, 3, and 4.<br /><br />Members of the family Enterobacteriaceae are gram-negative rods (1), facultative anaerobes (3), and oxidase-negative (4). They are not necessarily glucose-positive (2), as some species can be glucose-negative.