Gene-Environment Architecture of Spatial Reasoning Ability of Twins

Pages: 424-427
Annu (Department of Human Development and Family Studies , I.C. College of Home Science, Chaudhary Charan Singh Haryana Agricultural University, Hisar Haryana)
Bimla Dhanda (Department of Human Development and Family Studies , I.C. College of Home Science, Chaudhary Charan Singh Haryana Agricultural University, Hisar Haryana)

Spatial ability is an important in different fields (physics, chemistry and engineering) to accomplish work and resolve problems through visual spatial. The present investigation formulated with the aim of architecture of genetic and environment on spatial reasoning ability of twins. 100 pairs of twins with the age group 6-8 years were selected from Bhiwani and Hisar district from state of Haryana. Thespatial reasoning ability of twins was measured using the Wechsler Intelligence Scale for Children- Revised (WISC-R).Heritability estimate referred to analyze genes expression on spatial reasoning ability of twins. The result stated that the heritability estimates for spatial reasoning ability of twins were ranging from 51-61 percent in Bhiwani and Hisar districts. The correlation coefficient among monozygotic and dizygotic twins for spatial reasoning ability of twins namely: block design and maze was ranging from r=0.42 (Dizygotic twins) to r=0.72 (Mnozygotic twins) in both Bhiwani and Hisar districts The result also revealed that the monozygotic twins were more correlated in spatial reasoning ability as compared to dizygotic twins. The spatial reasoning ability was more influenced by genetic basis as compared to environmental factors.