The answer is not C,D,F nor is it C & D. I need to know the correct combination

Question

The answer is not C,D,F nor is it C & D. I need to know the correct combination of choices for this question:

Maybe it does include C, D, or F... but you need to give me the correct combination of the letter choices, so I can check against.

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

C- Clock genes are highly mobile between species

F - Average mutation rates are constant across generations and between organisms.

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