The GATE Life Science Exam Pattern 2025 consists of three main sections: General Aptitude, Chemistry (XL-P), and optional Life Science subjects. The exam will include a total of 65 questions worth 100 marks, with a duration of 3 hours. The marking scheme includes negative marking for incorrect answers in multiple-choice questions. Candidates can choose two optional subjects from Biochemistry, Botany, Microbiology, Zoology, and Food Technology