Multiple Choice
Why are yeast considered good model organisms for studying natural selection in organic chemistry?
1. A Review of General Chemistry
Intro to Organic Chemistry
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In the context of organic chemistry, why is the use of a molecular clock controversial?
A
It requires the use of radioactive isotopes, which can be hazardous.
B
It relies on the assumption that mutation rates are constant over time.
C
It assumes that all organic reactions occur at the same temperature.
D
It is based on the idea that all molecules have the same energy levels.
Verified step by step guidance1
Understand the concept of a molecular clock: A molecular clock is a method used to determine the time of evolutionary events based on the rate of genetic mutations.
Identify the assumption behind the molecular clock: The molecular clock relies on the assumption that mutation rates are constant over time, which is a key point of controversy.
Consider the variability of mutation rates: In reality, mutation rates can vary due to environmental factors, genetic drift, and other influences, challenging the assumption of constancy.
Evaluate the implications of variable mutation rates: If mutation rates are not constant, the timing of evolutionary events estimated by a molecular clock may be inaccurate.
Recognize the broader impact: The controversy affects the reliability of molecular clocks in evolutionary biology and their application in organic chemistry for dating molecular changes.
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