NEET BIOLOGY

Detailed explanation-1: -The name indicates that this characteristic of the human blood originates from the findings of animal experiments with monkeys: Rhesus factor derives from the rhesus monkey (Macaca mulatta).

Detailed explanation-2: -Rh antigen, often called the Rh factor, on the cell membranes of the red blood cells (erythrocytes). The designation Rh is derived from the use of the blood of rhesus monkeys in the basic test for determining the presence of the Rh antigen in human blood.

Detailed explanation-3: -So, the correct answer is ‘Macaca rhesus’.

Detailed explanation-4: -It did get its name from the Rhesus macaque monkey, but not because we got it from them! Scientists just happened to first discover this blood type in Rhesus monkeys. It turns out that some forms of Rhesus molecules are found in most life forms.

Detailed explanation-5: -Rh factor (or Rhesus factor) is a type of protein on the outside or surface of your red blood cells. You inherit the protein, which means you get your Rh factor from your biological parents. If you have the protein, you’re Rh-positive. If you don’t have the protein, you’re Rh-negative.