Who was the scientist to introduce $ABO$ blood groups
Wiener
Levine
Fisher
Landsteiner
(d)Karl Landsteiner of $USA.$ He was awarded Nobel prize for the same in $1930.$
Loss or gain of a segment of $DNA$ results in
Definitions / Explanation : Complementary Gene
Which of the following parental combination has produced mutant offspring?
Haemophilia is a
The most common type of haemophilia results from the congenital absence of
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