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4.Principles of Inheritance and Variation
medium
A person meets with an accident and great loss of blood has occurred. There is no time to analyse his blood group. It is safe to transfer blood of group
A
$AB,R{h^ + }$
B
$AB,R{h^ - }$
C
$O,R{h^ - }$
D
$O,R{h^ + }$
(AIIMS-1984)
Solution
(c)$O$ group is universal donor; $R{h^ + }$blood can be given to a $R{h^ – }$person only once, so $O\,\,R{h^ – }$is safer.
Standard 12
Biology
