ABNORMAL ABDOMEN [A]
Lindsley & Grell, 1972, p. 7
discoverer: Morgan, 11g.
references: 1915, Am. Naturalist 49: 384-429 (fig.). Morgan and Bridges, 1916,
Carnegie Inst. Wash. Publ. No. 237: 27 (fig.).
phenotype: Tergites and sternites raggedly incomplete, exposing a thin
crinkled cuticle; bristles and hairs on abdomen correspondingly eliminated.
Highly variable, wild phenotype in old dry cultures. A/+ less extreme than A/A
and A male; homozygous female fully viable and fertile. RK2 in well-fed
other information: Lost by reversion to wild type.
color figure: P. A. Otto (original)
b & w figure: Morgan, 1919, The Physical Basis of Heredity, Lippincott, Philadelphia
(original drawn by Edith M. Wallace)