The Journal of Heredity 1985:76(1):55-58
© 1985 The American Genetic Association 76:55-58
research-article |
Chromosomal heteromorphisms in Delhi infants
III. Qualitative analysis of C-band inversion heteromorphisms of chromosomes 1, 9, and 16
Dr. Potluri is affiliated with the Division of Medical Genetics, Department of Pediatrics, the Mount Sinai Medical Center, 100th Street and 5th Avenue, New York, NY 10029; Drs. Singh and Bhasin are with the Department of Anthropology, University of Delhi, Delhi-7, India. This work was supported by the Council of Scientific and Industrial Research, and the Indian Council of Medical Research of New Delhi. The authors greatly appreciate assistance from the medical and paramedical staff while collecting the cord blood.
Abstract
Qualitative analysis of C-band heteromorphisms was carried out In 200 infants (100 males and 100 females) In Delhi, India. Partial inversions minor and half Inversions were observed as modal levels for chromosomes 1 and 9 in both sexes. No chromosome 16 with a C-band inversion was observed in the present investigation. A significantly higher incidence of percent inversions for chromosomes 1 and 9 was observed In males than in females. The frequency of heterozygous inversion level combinations for chromosome pairs 1 and 9 were remarkably higher than homozygous combinations both in males and females. Our results are compared with the other reported studies, and the possible role of these heteromorphisms in ethnic/racial variation and in developmental disturbances are discussed.