Note 204 — APPENDIX D
Reading edition
Sewall Wright has pointed out (Journal of Heredity, VIII, p. 376) that the white blaze in the hair can not be finally classed as dominant or recessive until the progeny of two affected persons have been seen. All matings so far studied have been between an affected person and a normal. It may be that the white blaze (or piebaldism) represents merely a heterozygous condition, and that the trait is really a recessive. The same argument applies to brachydactyly.