Question
Who discovered the Rh factor in blood in the year 1940?
Solution
Karl Landsteiner and Alexander Wiener discovered the Rh factor in 1940. This discovery has significant implications in medicine, particularly in blood transfusion and pregnancy, where Rh compatibility is crucial.
Goblet cells-are not present in which part of respiratory tract?
Removal of diseased plant parts is called as:
Regeneration of whole plant from callus and suspension cultures in the nutrient medium isÂ
A DNA specific to plants and algae is _______.
Which of the following exchangeable sodium percentage is characteristic of alkaline soils?
In British Drug House (BDH) method of pH testing, soil is mixed with distilled water, universal indictor solution and ______for a colour reaction.
The role of Thiocyanate in the LP system is to
RRB came into the existence in the year _______.
Carbamate and organophosphate insecticide act on which part of insects?
Which of the following is a contact herbicide?
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