GATE 2022 Life Sciences (XL) Answer Key With Solutions [Updated]

IIT Kharagpur has conducted the GATE 2022 Life Sciences (XL) examination from 2:30 pm to 5:30 pm pm today, February 12, 2022. The candidates who have appeared for the paper today can check out the answer key solutions. Popular coaching institutes and educationists have started compiling the solutions for the paper.

Although, unofficial in nature, they are prepared by experts who have years of experience in teaching the GATE 2022. Apart from correct answers, these unofficial answer keys also provide the correct explanation for all the problems that appeared in the written exam. As per students, the level of the questions in GATE Life Sciences (XL) asked was of moderately to difficult level.

Using these answer keys of GATE 2022 XL, candidates can use the markings scheme referred by the authorities for all the papers. As per the marking scheme, 1 or 2 marks shall be assigned to each correct answer and there is going to be a deduction of 1/3rd marks for the wrong answer marked by the candidates. The candidates shared that the level of the examination was somewhere between moderate to difficult level.

The GATE 2022 XL exam had questions from the syllabus, pertaining to the following sections:

XL – P Chemistry (Compulsory for all XL candidates)
Section 1: Atomic Structure and Periodicity
Section 2: Structure and Bonding
Section 3: s, p and d Block Elements
Section 4: Chemical Equilibria
Section 5: Electrochemistry
Section 6: Reaction Kinetics
Section 7: Thermodynamics
Section 8: Structure-Reactivity Correlations and Organic Reaction Mechanisms
Section 9: Chemistry of Biomolecules

XL – Q Biochemistry
Section 1: Organization of life
Section 2: Enzyme kinetics
Section 3: Biochemical separation techniques
Section 4: Cell structure and organelles
Section 5: DNA replication
Section 6: Immune system

XL – R Botany

Section 1: Plant Systematics
Section 2: Plant Anatomy
Section 3: Plant development
Section 4: Plant physiology and biochemistry
Section 5: Genetics and genomics
Section 6: Plant Breeding
Section 7: Economic and applied Botany
Section 8: Plant Pathology
Section 9: Ecology and Environment

XL – S Microbiology
Section 1: Historical Perspective
Section 2: Methods in Microbiology
Section 3: Microbial Taxonomy and Diversity
Section 4: Prokaryotic Cells
Section 5: Microbial Growth
Section 6: Control of Micro-organisms
Section 7: Microbial Metabolism
Section 8: Microbial Diseases and Host Pathogen Interaction
Section 9: Chemotherapy/Antibiotics
Section 10: Microbial Genetics
Section 11: Microbial Ecology

XL – T Zoology

Section 1: Animal Diversity
Section 2: Evolution
Section 3: Genetics
Section 4: Biochemistry and Molecular Biology
Section 5: Cell Biology
Section 6: Gene expression in Eukaryotes
Section 7: Animal Anatomy and Physiology
Section 8: Parasitology and Immunology
Section 9: Development Biology
Section 10: Ecology
Section 11: Animal Behaviour

XL – U Food Technology

Section 1: Food Chemistry and Nutrition
Section 2: Food Microbiology
Section 3: Food Products Technology
Section 4: Food Engineering

GATE 2022 Life Sciences (XL) Answer Key with Solutions

Candidates can check out the direct link of the answer keys of the GATE 2022 XL paper in the space below:

These other channels are also expected to release the answer keys.