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DNA Replication And DNA Storage Practice Test

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The DNA that remains largely noncoding and repetitive constitutes the majority of the genome.
Correct Answer:
Repetitive DNA
Explanation:
Many organisms have most of their DNA not encoding proteins. The bulk of the genome is made up of noncoding, repetitive sequences such as transposable elements, satellite DNA, and simple sequence repeats. These repetitive elements can exist in many copies, filling up the genome and making noncoding DNA the majority. Only a small fraction of the genome codes for proteins, and the genes that are transcribed into messenger RNA come from those coding regions. So the description points to repetitive DNA as the predominant component of the genome.

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