[Electron Spin Resonance (...] Age of fossils in the past was generally determined by radio-carbon method and other methods involvi

For Competitive Exams

Age of fossils in the past was generally determined by radio-carbon method and other methods involving radioactive elements found in the rocks. More precise methods, which were used recently and led to the revision of the evolutionary period for different groups of organisms, includes

study of carbohydrates/proteins in fossils

study of the conditions of fossilization

Electron Spin Resonance (ESR) and fossil DNA

study of carbohydrates/proteins in rocks

Additional Questions

In the case of peppered moth (Biston betularia) the black-coloured form became dominant over the light-coloured form in England during industrial revolution. This is an example of	Answer
Organic compounds first evolved in earth required for origin of life were	Answer
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The idea of Natural selection as the fundamental process of evolutionary changes was reached	Answer
Which one of the following statements is correct?	Answer
When two species of different genealogy come to resemble each other as a result of adaptation, the phenomenon is termed:	Answer
Select the correct statement from the following:	Answer
Jurassic period of the Mesozoic era characterized by	Answer
The extinct human who lived 1,00,000 to 40,000 years ago, in Europe, Asia and parts of Africa, with short stature, heavy eye brows, retreating fore heads, large jaws with heavy teeth, stocky bodies, a lumbering gait and stooped posture was	Answer

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