7.03 Lecture 28-30 11/17/03,11/19/03,11/21/03 PEDIGREE:DOMINANT TRAIT WITH SUPPRESSOR SEGREGATING It looks like we've been lucky.Allele A at SSR37 appears to segregate with HD.But can you be confident that the HD gene is in close proximity to the SSR37 locus,or even that it is on chromosome 4? 97.03 Lecture 28-30 11/17/03, 11/19/03, 11/21/03 9 PEDIGREE: DOMINANT TRAIT WITH SUPPRESSOR SEGREGATING It looks like we've been lucky. Allele A at SSR37 appears to segregate with HD. But can you be confident that the HD gene is in close proximity to the SSR37 locus, or even that it is on chromosome 4?