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. None of the above

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.