Q13. Genomes sizes among related eukaryotes vary much more widely than genome sizes among related bacteria. How is this difference in variability best explained?   A. Evolutionary processes (e.g. natural selection) exert less constraint on genome size in eukaryotes than in bacteria. B. Genome size is proportional to energy production - cells that make more ATP have more DNA. C. Eukaryotes have a much wider range of chromosome number than bacteria. D. Organisms with greater morphological complexity have larger genomes.

Biology 2e
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Chapter18: Evolution And The Origin Of Species
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Problem 13RQ: Which condition is the basis for a species to be re productively isolated from other members? It...
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Q13. Genomes sizes among related eukaryotes vary much more widely than genome sizes among related bacteria.

How is this difference in variability best explained?

 

A. Evolutionary processes (e.g. natural selection) exert less constraint on genome size in eukaryotes than in bacteria.

B. Genome size is proportional to energy production - cells that make more ATP have more DNA.

C. Eukaryotes have a much wider range of chromosome number than bacteria.

D. Organisms with greater morphological complexity have larger genomes.

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