භෞතික විද්යාව – 2007 විවරණය – මහාචාර්ය එස්.ආර්.ඩී රෝසා 
තරල - මහාචාර්ය ඩී. ඩී. එන්.බාලෝ දයා 
Biology School Paper Pack No.01 – Grade 13 ( Sinhala Medium ) 
Biology No. 03 - 2021 Provincial Paper Pack – Grade 13 ( Sinhala Medium ) 
Description
This book focuses on Genetics, one of the most challenging yet fascinating units in A/L Biology. It offers 10 model MCQs with detailed answers, emphasizing deep understanding rather than simple memorization. The explanations help students grasp the complex principles of heredity, genetic variation, and the transmission of traits across generations. In addition to covering the new A/L Biology syllabus, the book also reviews MCQs from earlier Zoology and Botany curricula, providing a comprehensive resource to strengthen students’ knowledge and exam performance.
