hypomorphic allele - genetic evidence
gap phenotype | embryonic stage | recessive
lethal - all die during embryonic stage | recessive
some die during embryonic stage | recessive
embryonic mesothoracic segment
embryonic metathoracic segment
embryonic prothoracic segment
Homozygous embryos have no thoracic segments.
Retains prothoracic and A7 segments
Lewis.
Revertant.
Class II allele.
Phenotypic class II.
Class II allele.
Phenotypic class II.