Genetic Disorders – Biology for UPSC EPFO/APFC Exam | Notes + MCQs | Unicorn Factory Classes

Biology for UPSC EPFO/APFC 2025 – In this lecture, we explain the Genetic Disorders in humans — covering causes, examples, inheritance patterns, and key genetic concepts important for UPSC, EPFO, SSC, CDS, and State PCS exams.
This topic combines conceptual understanding + factual recall, making it a high-probability area for objective-type questions.
🔹 Topics Covered:
Introduction to Genetics and Genetic Disorders
Types of Genetic Disorders:
Single Gene (Mendelian) Disorders
Chromosomal Disorders
Multifactorial/Complex Disorders
Examples of Mendelian Disorders:
Hemophilia
Sickle Cell Anemia
Cystic Fibrosis
Phenylketonuria (PKU)
Thalassemia
Examples of Chromosomal Disorders:
Down’s Syndrome (Trisomy 21)
Turner’s Syndrome (XO)
Klinefelter’s Syndrome (XXY)
Genetic Counseling and Prenatal Diagnosis
PYQs + Practice MCQs

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🎯 Objective: Build complete conceptual clarity on Genetic Disorders (Single-gene + Chromosomal) for UPSC EPFO/APFC 2025 and other government exams.