lactose negative oxidase positive gram negative rod

In 1884 a Danish physician Christian Gram devised a technique of differential staining for bacterial cells, using two simple stains. The procedure involves staining bacteria initially with a weak alkaline solution of gentian (crystalline) violet. All bacterial cells stain blue with this d..

When an electric field is applied in the path of cathode rays, they are deflected towards the positive plate of the electric field, which shows cathode rays are made up of negatively charged particle..

What is the product of three negative integers? => Positive integer or Zero or Negative integer..

The sum of two negative integers is ______________. => Positive or Negative or 0 or Cannot be determined..

Is the product, 7(-4)(-3), positive or negative? => Negative or 0 or Positive..

Without actual multiplication, tell whether the product - 9 × 4 × 6 is positive or negative. => Negative or Positive..

Identify a positive and a negative angle coterminal with the angle 36°. => - 396°, - 324° or 396°, - 324° or - 396°, 324° or 396°, 324°..

Find a positive and a negative angle coterminal with the angle 1230°. => - 870°, 750° or 150°, - 210° or 690°, - 510° or 420°, 150°..

Choose a positive angle and a negative angle that are coterminal with the angle 300° . => 60°, - 60° or 660°, - 60° or 60°, - 660° or 360°, - 60°..

Choose a positive angle and a negative angle that are coterminal with the angle 300° . => 60°, - 660° or 660°, - 60° or 60°, - 60° or 360°, - 60°..