What are mutations? Explain the types of mutations.

What are mutations? Explain the types of mutations. 
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Ans: Mutation is sudden inheritable change in an organism. The various types of mutations are 1. Spontaneous mutations: These occur by themselves in nature and are very slow. Ex: Delicious apple. 2. Induced mutations: Mutations caused deliberately by using some mutagens. These are widely used in crop improvement. The mutagens may be physical like radiation or chemical like colchicines, EMS, MMS, Formaldehyde etc. 3. Chromosomal mutations: Mutations caused due to change in structure and number of chromosomes. The structural changes are deletions, duplications, inversions, translocations and numerical changes such as Euploidy polyplids and aneuploids such as Monosomy, Trisomy, Tetrasomy, Nullisomy. 4. Gene mutations or Point mutations: It takes place in a small segment of DNA molecule i.e. a single nucleotide or a nucleotide pair. 
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Related questions

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Description : Differentiate between spontaneous and induced mutations? 

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Description : How are mutations useful for crop improvement? 

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Description : What are mutations? Who discovered them?

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Description : How many types of secretary cavities are there? Explain with examples 

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Description : How many types of roots ?

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Last Answer : dude, I think this can be googled…. ;-P sorry if i sound like a smart alec….

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Description : What is the seed after fertilization ?

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title : _

Description : title : _

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Description : Why Flowers Are Needed ?

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