Figure 3.

The mRNA of both alleles of Pcf11 was detected at the 5′ end, but only one allele was detected at the 3′ end in the Inr-a^hd1/+ heterozygote. Upper row shows the genomic DNA polymorphisms (double peaks). Lower row shows the cDNA sequences at the corresponding positions. When the polymorphisms disappear, this indicates that only one allele is expressed. Left, single nucleotide polymorphism at position 1089; middle, deletion of six nucleotides starts at position 7869; right, single nucleotide polymorphism at position 8696. DNA sequences are shown with paired colored letters for double peaks.