Q128 / 160 · JIPMER 2009 · Zoology

Rh factor is present in

A
all vertebrates
B
all mammals
C
all reptiles
Correct answer
D
man and rhesus monkey only

Solution

Rh factor was discovered by K Landsteiner and A S Wiener (1940) from rabbits immunized with the blood of monkey Macaca rhesus. It is found is man and rhesus monkey only.

Hence, the correct answer is option: 'D'.

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