This work is licensed under a
Creative Commons Attribution 4.0 International License
Brook J.D., Gosden R.G., Chandley A.C. Maternal ageing and aneuploid embryos- evidence from the mouse that biological and not chronological age is the important influence. Human Genetics 66 (1) (1984) 41-45.
Deccan Herald News Service. Down syndrome still fatal in India. Deccan Herald, April 19, (2013).
Ghosh S., Feingold E., Chakraborty S., Dey S.K. Telomere length is associated with types of chromosome 21 nondisjunction: a new insight into the maternal age effect on Down Syndrome birth. Human Genetics, 127(4) (2010) 403-409.
Jones, K. L. Recognizable patterns of human malformation. Philadelphia: Elsevier (2006).
NDSS - National Down Syndrome Society. What Is Down Syndrome? Retrieved from www. ndss. org/Down-Syndrome/What-Is-Down-Syndrome.
Penrose, L.S. The relative effect of paternal and maternal age in Mongolism. Journal of Genetics, 27(2) (1933) 219-224.
Penrose, L.S. The relative etiological importance of birth order and maternal age in Mongolism. Proceedings of the Royal Society B Biological Sciences, 115 (1934) 431450.
Powell-Hamilton, Nina N. Down Syndrome (Trisomy 21; Trisomy G). In Merck Manual Home Health Handbook for Patients and Caregivers. Retrieved from www. merckmanuals. com/home/childrens_health_issues/chromosomal_and_genetic_ab normalities/down_syndrome_trisomy_21_trisomy_g. html?qt=&sc=&alt=.
Verma, I.C. Personal communication. As cited in Jayalakshamma et al. Cytogenetic Analysis in Down Syndrome. International Journal of Human Genetics, 10(1-3) (2010) 95-99.
WHO Genomic Resource Centre. Gene and human disease. Retrieved from http: /www. who. int/genomics/public/geneticdiseases/en/index1. html# ( Received 01 February 2015; accepted 10 February 2015 ).