...D.C. Rao; R. Lew Complex segregation analysis of tongue pigmentation in 493 nuclear families fails to indicate significant evidence for incomplete recessivity, polygenic variation, or an effect of sibship environment, thus establishing simple Mendelian inheritance for the trait. 28 8 2008...

...D.C. Rao Tongue pigmentation has been studied for testing the probable genetic mechanism determining this character. One pedigree from Kerala, and data on 132 families from West Bengal, have been reported here. Tests for segregation in the families support the genetic hypothesis that tongue...

..., instructions or products referred to in the content or advertisements. Tongue pigmentation Genetics Segregation Human Heredity 23: 308-312(1973) Formal Segregation Analysis for Tongue Pigmentation in M an1,2 D. C. Rao Department of Probability and Statistics, University of Sheffield, Sheffield...

...D.C. Rao Two pedigrees from Kerala and data on 274 families from 4 states in India have been reported here along with some population data on tongue pigmentation. Analysis of the pedigrees and sibships reported here and previously, revealed that neither an autosomal dominant, nor a sex-linked...

...D.C. Rao As previous studies have given support to the assumption that tongue pigmentation in man is inherited as a simple autosomal recessive character [Rao, 1970], an attempt has been made in this study to (1) test for sex-differences in the trait, and (2) investigate whether there is any...