Define the word Nullisomy.

Define the word Trisomy

Define metre.

Define second.

Define halides

Define energy.

Let w denotes the set of words in the English dictionary. Define the relation R by R = {(x, y) in W xx W} , the words x and y have at least one letter in common, then R is

Let w denote the words in the english dictionary. Define the relation R by: R = {(x,y) in W xx W | words x and y have at least one letter in common}. Then R is: (1) reflexive, symmetric and not transitive (2) reflexive, symmetric and transitive (3) reflexive, not symmetric and transitive (4) not reflexive, symmetric and transitive

All the letters of the word 'AGAIN' be arranged and the words thus formed are known as 'Simple Words'. If a vowel appears in between two similar letters, the number of simple words is

Define clone.

Define breed.