Age of fossils in the past was generally determined by radio... | Biology | SolveeIt | Solveeit

Today, August 19

Question

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 periods for different groups of organisms includes

A

Study of the conditions of fossilization

B

Electron spin resonance (ESR) & fossil DNA

C

Study of carbohydrates/proteins in rocks

D

Study of carbohydrates/proteins in fossils

Answer

Electron spin resonance (ESR) & fossil DNA

Explanation

Solution

In recent times, electron spin resonance (ESR) and fossil DNA have emerged as more accurate techniques for dating fossils, resulting in revisions to the established evolutionary timelines for various groups of organisms. ESR dating has gained prominence as an alternative to radiocarbon dating because it can effectively date newly created materials or rocks that have undergone prior heating.