Complex Inheritance of Human Traits: A Population Study from Karnataka
Abstract: This study determined phenotypic frequencies of five commonly cited human traits in 433 individuals from Mandya, Karnataka, India. Data analyzed included ear lobe morphology, tongue rolling ability, widow's peak, hitchhiker's thumb, and index-ring finger length. Statistical validation using chi-square analysis and confidence intervals evaluated distributions against traditional Mendelian inheritance models. Findings reveal hitchhiker's thumb conforms to expected recessive patterns (chi-square=1.85, p=0.17), while ear lobe morphology (chi-square=65.79, p
Keywords: Mendelian traits, population genetics, Karnataka, chi-square analysis, genetics education
How to Cite?: Dinesh Udapi, "Complex Inheritance of Human Traits: A Population Study from Karnataka", Volume 15 Issue 2, February 2026, International Journal of Science and Research (IJSR), Pages: 703-705, https://www.ijsr.net/getabstract.php?paperid=SR26211210122, DOI: https://dx.doi.org/10.21275/SR26211210122