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There is more than one correct choice for this question: Hint: Molecular clocks

ID: 268642 • Letter: T

Question

There is more than one correct choice for this question:

Hint: Molecular clocks are gene sequences used to derive evolutionary distances between organisms. Genetic changes are assumed to result from random mutations that accumulate over generations. ?

Which of the following conditions would increase the accuracy of a molecular clock? Choose one or more: The gene sequences are orthologous (have the same function). D B. The genes encode resistance to antibiotics C. The "clock" genes are highly mobile between species D. The organisms have similar generation times. D E. The genes are carried on plasmids. F. Average mutation rates are constant across generations and between organisms.

Explanation / Answer

The correct answer will be C and D ,if the clock gene is highly mobile between species than divergence occurs and same generation time give the idea about their occurence after that mutation gives the correct divergence.