title: Non-random distribution of various sizes of human Y chromosomes in different ethnic groups.
abstract: One hundred and ninety normal males from three ethnically different populations (Caucasians, American blacks and East Indians) were selected to study the frequency distribution of length of the Y chromosome, fluorescent (f) and non-fluorescent (nf) segments as a function of Y/F, f/F and nf/F indices. The QFQ techniques was performed to identify the f and nf segments. The frequency distribution of the total length of Y chromosome was not normally distributed in all three populations (P less than 0.05). Extensive statistical analysis revealed that the non-random distribution of the total length was due to skewness and kurtosis for both the n and nf segments. The clinical implications as well as evolutionary aspects of such variation in ethnic anthropology are discussed.
authors: Division of Cytogenetics, Interfaith Medical Center, Brooklyn, New York.
authors: R S
authors: RS
authors: Verma
authors: R P
authors: RP
authors: Pandey
mesh_terms: D044383:Black People; D005006:Ethnicity; D006801:Humans; D007194:India; D008297:Male; D011110:Polymorphism, Genetic; D013223:Statistics as Topic; D044465:White People; D014998:Y Chromosome