How many contrasting characters did Mendel select for his experiments? 

Who in the following is a gender linked disease? 

The velocity of light was first measured by

A liquid disturbed by stirring comes to rest due to 

Which one of the following is not correctly matched – 

Which of the following is not easily oxidized at high temperature?

When Arsenic atoms are added to Germanium Lattice it becomes a/an 

A gas burning with blue flame is-