Mammal-specific repetitive sequences in human Alu family members.
Repetitive DNA sequences are widely dispersed in the mammalian genome. Here we characterize mammalian-specific repetitive sequences in the Alu family, the most abundant human repetitive DNA family. We found that the Alu repeats are frequently interrupted by sequences of non-Alu origin, resulting in the tandem arrangement of multiple Alu repeats. By comparing Alu repeat sequences isolated from human, mouse, rat, dog and pig, we f
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