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Find out, whether the given statement is true or false and give justification for the same:
  
1. Gregor Johann Mendel, an Austrian monk, used his experiments to discover the basic principles of heredity. He called the substance, which is responsible for transferring of characteristics as genes.
 
This statement is
  
2. Monohybrid crosses involve the inheritance of only two pair of contrasting characters.
 
This statement is