The following sections will guide a beginner in the field through simple and general procedures for the localization and mapping of paralogous genes in a known genomic DNA sequence. The approach is based on searching conceptual translations of a genomic DNA for blocks of highly conserved amino acid sequences that occur in more than one location (6). For identification and mapping of paralogous genes, the browser at the UCSC is used here since it provides numerous tools for data access and visualization (2,3).

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