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In paleontology, the conventional technique for estimating the age of fossils in the past primarily relied upon the radio-carbon method and other approaches incorporating radioactive elements discovered within rocks. However, contemporary advancements have introduced more refined methodologies, subsequently necessitating the reassessment of evolutionary timeframes pertaining to various organism groups. These modern techniques encompass:
The investigation of fossilization conditions
The utilization of electron spin resonance (ESR) and analysis of fossil DNA
The scrutiny of carbohydrates and proteins within rocks
The examination of carbohydrates and proteins within fossils
Answers (1)
Previously, the age of fossils was estimated using methods like radio-carbon dating and analyzing radioactive elements in rocks. However, advancements in paleontological research have introduced more refined techniques for dating fossils. One of these techniques is electron spin resonance (ESR) combined with the analysis of fossil DNA. ESR measures radiation-induced defects in teeth or bones to determine their age, while DNA analysis provides insights into the genetic history of ancient organisms. These modern techniques have allowed scientists to reassess evolutionary timelines and gain a more precise understanding of the age and relationships of fossils. Hence, the correct answer is option 2.
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