Most species of bacteria can be broadly divided into two groups, known as gram-positive and gram-negative. These categories ...

In a routine blood test that turned extraordinary, French scientists have identified the world's newest and rarest blood ...

Find out the differences between gram-positive bacillus and gram-negative bacillus and how they may affect health.

Now, scientists say the woman is the only known carrier of a new blood type called “Gwada negative.” It’s the only blood type within a new blood group system that scientists have dubbed “PigZ,” which ...

HER2-negative and HER2-positive are types of breast cancer that share some things in common but have plenty of differences, too. Which kind you have can affect the treatment you get.

More Direct Line of Communication The direct, person-to-person nature of this technology is another one of the positive effects of cell phones.

Gram positive vs gram negative Gram positive bacteria are surrounded by a single thick peptidoglycan cell wall and are therefore termed monoderms. Gram negative bacteria have a much thinner ...

The cells within an electric vehicle's battery pack each have an anode (the negative electrode) and a cathode (the positive electrode), both of which are separated by a plastic-like material.

Discover the meaning of a negative correlation coefficient, how it compares to other correlation coefficients, and examples of where they might appear.

The molecular markers CD4 and CD8—defining helper T cells and killer T cells, respectively—were once considered mutually exclusive. But "double positive" CD4+-CD8+ T cells have lately been ...

Gram-positive bacteria show blue or purple after Gram-staining in a laboratory test. They have thick cell walls. Gram-negative bacteria show pink or red on staining and have thin walls.