In this article we will discuss about:- 1. Meaning of Polyploidy 2. Types of Polyploids 3. Causes or Origin of Polyploidy 4. Techniques of Inducing Polyploidy 5. Evolution 6. Practical Value 7. Role in Plant Breeding 8. Some Artificially Produced Polyploids. Meaning of Polyploidy: An organism having more than two sets of homologous chromosomes is […]
Polyploidy: Meaning, Causes and Evolution | Chromosomal Aberration
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5 Chief Agents that Bring Mutation in Organisms
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The following points highlight the five chief agents which bring about mutation in organisms. The agents are: 1. Induction of Mutation by Ionizing Radiations 2. Non-Ionizing Radiations 3. Heat and Temperature 4. Mustard Gas 5. Chemical Mutagens. Agent # 1. Induction of Mutation by Ionizing Radiations: X-ray is representative of ionizing radiations- a group including […]
Mutation: Meaning, Kinds and Frequency
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In this article we will discuss about:- 1. Meaning of Mutation 2. Kinds of Mutation 3. Frequency 4. Evolution 5. Role in Plant Breeding 6. Limitations. Meaning of Mutation: The credit of discovery of mutation goes to Wright (1791) when he observed it in male sheep. Any permanent or stable hereditary change other than one […]
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