(Q022) Genome size does not precisely determine gene number, as illustrated in the table below. What is a plausible explanation as to why A. thaliana , a plant, has a similarly sized genome as the fruit fly, but twice the number of protein-coding genes?

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Question

(Q022) Genome size does not precisely determine gene number, as illustrated in the table below. What is a plausible explanation as to why A. thaliana, a plant, has a similarly sized genome as the fruit fly, but twice the number of protein-coding genes?

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Accepted Answer

Plants have more genes that were duplicated during evolution.

Answer

Flies are more complex organisms with neural behaviors.

Answer

Plants have more repeated noncoding DNA sequences.

Answer

Flies are motile and must need more genes for movement.

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(Q022) Genome size does not precisely determine gene number, as illustrated in t...

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