TPI1 and cystic fibrosis: Based on the relative read counts homologous to Bombyx mori Z‐linked and autosomal genes in females and males, our genome sequencing data support the notion that CF and C females have one Z chromosome (Fig. 2M–O; Fig. S2), which is consistent with genomic qPCR data based on two loci, Triosephosphate isomerase (Tpi) and Ket, relative to the autosomal gene EF‐1α (Kern et al.