C5 Gene Sequencing Genomic DNA was isolated from peripheral-blood mononuclear cells with the use of the DNeasy Bloodstream and Tissue Package , and messenger RNA was isolated from peripheral-blood mononuclear cells with the use of the QIAamp RNA Bloodstream Mini Package . We synthesized complementary DNA from the mRNA using high-capacity cDNA reverse-transcription products . The C5 gene includes 41 exons that contain a total of 97,942 bp. To cover each exon, we designed 41 specific primer models at introns flanking each one of the 41 exons according to the C5 gene sequences reported in the GenBank database . Primer sequences for exon 21, which contains the determined mutations, are shown in Fig. S1 in the Supplementary Appendix . Total genomic DNA was utilized as a template and was amplified with the use of a polymerase-chain-response assay.Specific exams may be ordered if indicated by specific symptoms. Physicians and parents must be aware that academic institutions are federally mandated to execute an appropriate evaluation if a child is suspected of having a disability that impairs academic functioning. This plan was strengthened by rules applying the 1997 reauthorization of the Individuals With Disabilities Take action , which guarantees suitable solutions and a free, appropriate public education to kids with disabilities from ages 3 to 21.