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 $1930.$
In $F_{2}$-generation, quantitative inheritance $1: 4: 6: 4: 1$ is obtained instead of
Two offspring developed in the same uterus but from fertilization of two different ova are
In which of the following disorder a single protein that is a part of the cascade of proteins involved in blood clotting is affected?
Complete dominance is absent in
To be evolutionary successful, a mutation must be
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