MCQ on Molecular Clock with Answers

A molecular clock is a method used in evolutionary biology to estimate the timing of evolutionary events. It assumes that genetic mutations accumulate at a relatively constant rate over time. By comparing DNA, RNA, or protein sequences between different species, scientists can determine the number of mutations and infer the time since their last common ancestor. Molecular clocks are calibrated using known fossil records or historical events, providing a timeline for evolutionary divergence. This tool is essential for understanding species evolution, phylogenetic relationships, and the pace of genetic change over geological time scales. This is an MCQ on Molecular Clock with Answers.

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1. 
The concept of the molecular clock is based on which of the following?

2. 
Which of the following molecules is most commonly used in molecular clock studies?

3. 
The molecular clock method can be used to estimate which of the following?

4. 
Which of the following factors can affect the accuracy of the molecular clock?

5. 
Which of the following assumptions is made when using the molecular clock method?

6. 
In molecular clock studies, what is typically used as a calibration point to estimate divergence times?

7. 
Which of the following is a limitation of using the molecular clock to estimate divergence times?

8. 
Which molecular tool is commonly used in the study of the molecular clock in animals?

9. 
The molecular clock hypothesis assumes that the rate of molecular evolution is:

10. 
The molecular clock has been used to study the evolutionary history of which of the following?

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mcq on molecular clock




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