Radiation Genetics, Alpha Particles, Gamma rays, Internal Emitters, External Emitters, Hereditary Materials, Plutonium

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Radiation Genetics Strontium 90 and Cancer Radiation Genetics in X Rays

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Your Ad Here	Radiation Genetics The study of the effects of radiations on heredity is called radiation genetics. These radiations carry high energy. They remove ions from atoms. Hence these radiations are called ionizing radiations. Because of their ionizing property, they are injurious to protoplasm and the hereditary materials.
The following are the harmful radiations: 1. Alpha particles 2. Beta particles 3. X rays 4. Gamma rays The radiations are classified into two types based on their penetration power. They are 1. Internal emitters 2. External emitters
Internal emitters are ionizing radiations with low penetration power. They travel short distances. They produce their effect only when they are ingested or deposited into the living tissue. Eg. Alpha particles, beta particles, etc. External emitters are ionizing radiations with high penetration power. They can travel long distances. They can penetrate and produce effect even without being taken inside. Eg. Gamma rays.	Your Ad Here
Ionizing radiations are produced by elements called radioactive isotopes or radionuclides. Certain radioactive isotopes are not harmful. The harmful radioactive isotopes are the following: Strontium– 90 Cesium– 137 Iodin-131 Cobalt– 60 Argon– 41 Plutonium-238
Your Ad Here	Radiation cause the following ill effects on human beings: 1. Mutation 2. Cancer 3. Leukaemia 4. Congenital malformations 5. Infact mortality 6. Mental retardation 7. Retarded growth

Ionizing radiations are highly mutagenic. Ionizing radiation is capable of deep tissue penetration.

The effects of ionizing radiation are of two kinds, (a) its effects on germinal tissue and succeeding generations, (b) and its effects on somatic tissue on us.

The frequency of leukaemia, a cancer characterized by an excess formation of white blood cells, can be increased by radiation.

Radiation could induce cancers for a number of reasons. Various experiments illustrate that, there is an association between an increasing amount of radiation and increasing incidence of cancer.

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