Question

Blood transfusion, among which of the following organisms, serves as physiological evidence of evolution?

• A. Only (i)
• B. Both (i) and (ii)
• C. Only (iii)
• D. Both (i) and (iii)

Answer 1

The correct option is C

Only (iii)

Scientists like Friedenthal, Uhlenhuth and Nuttall individually figured out through experiments, that blood transfusion happens smoothly among “closely related” species, and not among the different sexes or blood-related organisms, of the same species. It was observed that good mingling of blood among different species indicated genetic similarity among two species, which has helped in tracing their paths of evolution.