All GRE Subject Test: Biochemistry, Cell, and Molecular Biology Resources
Example Questions
Example Question #7 : Help With Genome Evolution
Organisms with extremely large genomes tend to have high amounts of what?
Possible Answers:
Viral DNA insertions
Transposons
None of these are correct
Intron duplication
Recombination
Correct answer:
Transposons
Explanation:
Organisms with large genomes tend to have very high levels of transposons. For instance, this is the case in our own genomes. It is hypothesized that in some organisms, there is a breakdown of systems that control insertion of transposons into the genome, resulting in large expansions.
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All GRE Subject Test: Biochemistry, Cell, and Molecular Biology Resources
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