| Science Dictionary: repetitive DNA |
Stretches of DNA that repeat themselves throughout a genome, either in tandem or interspersed along the genome. These stretches can comprise up to fifty percent or more of an organism's DNA. It can code for an end product, perhaps a certain enzyme that is needed in large numbers; it can have a structural function (such as a telomere); or it can comprise sequences with no known function.
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| Wikipedia: Repeated sequence (DNA) |
In the study of DNA sequences, one can distinguish two main types of repeated sequence:
The majority of LINEs are LINE-1 and the majority of SINEs are ALUs.
In prokaryotes, CRISPR are arrays of alternating repeats and spacers.
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Note: The following are covered in detail in "Computing for Comparative Microbial Genomics"[1].
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 | Science Dictionary. The New Dictionary of Cultural Literacy, Third Edition Edited by E.D. Hirsch, Jr., Joseph F. Kett, and James Trefil. Copyright © 2002 by Houghton Mifflin Company. Published by Houghton Mifflin. All rights reserved. Read more |
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