Which one of the following causes crown gall disease
In an experiment freshly hatched larvae of an insect (Khapra beetle) were reared on a basal diet (complete diet without cholesterol) with increasing amounts of cholesterol. Results obtained are shown in the given graph.
The graph indicates
Which one of the following is a case of wrong matching?
A true breeding plant is
Cocoa is the plant from which chocolate is made. Which part is used to extract it?