Glossary

AllelesDifferent DNA sequences at the same site or locus in genomic DNA. For example, we now know that an L1 from a specific chromosomal locus may have a number of alleles in the human population. These alleles may differ from each other at only 1-5 nucleotides out of 6000 in a full-length L1.

Consensus sequenceA consensus or majority-rule sequence is a sequence of a repeat in which each nucleotide is determined by nucleotide in the majority of sequences at that position. For example, if among 10 sequences of L1 elements, position 5000 contains an A in 6 and a G in 4, the consensus sequence for position 5000 is A.

Direct repeatsDNA sequences at the ends of mobile DNA that are directly repeated. For example, sequence at the 5' end is ...

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