What is the theory of Mutation? Explain reasons and means of Mutation.

1.	What is the theory of Mutation? Explain reasons and means of Mutation.
Answer» Theory of Mutation: Hugo de Vries gave the theory of mutation. When he tested some plant, he found that some of the plants produced are quite different from their species. These traits are inherited from generation to generation. These sudden variations in inherited characters are called Mutation. Mutation in animals can be caused by the following: 1. Change in number of genes 2. Change in gene arrangement 3. Change in gene structure. Means of mutation: Mustard gas, Nitrous acid, Phenol, X – rays, Beta rays etc.

Answer»

Theory of Mutation:

Hugo de Vries gave the theory of mutation. When he tested some plant, he found that some of the plants produced are quite different from their species. These traits are inherited from generation to generation. These sudden variations in inherited characters are called Mutation.

Mutation in animals can be caused by the following:

1. Change in number of genes

2. Change in gene arrangement

3. Change in gene structure.

Means of mutation: Mustard gas, Nitrous acid, Phenol, X – rays, Beta rays etc.

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