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GAT-B 2025 Exam

Name: GAT-B 2025, Exam Dates, Syllabus, Download Admit Card
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About GAT-B Exam

GAT-B 2023 - The National Testing Agency will soon release the GAT-B 2023 final answer key in online mode. NTA opened the GAT-B answer key 2023 challenge window at the official website - dbt.nta.ac.in on May 19 and closed it on May 20. The GAT-B admit card was issued on May 11. Earlier, the GAT-B city allotment 2023 was out on May 8. The exam duration of GAT-B was three hours which was conducted on May 13.

GAT-B Exam Date

All the important dates related to Graduate Aptitude Test-Biotechnology 2023 are given below.

Events	Dates
Online Registration	10th March 2023
Last date to register	5th April 2023 ( Extended )
Application correction	8th to 9th April 2023
GAT-B advance city intimation	8th May 2023
Release of Admit card	11th May 2023
GAT-B exam date	13th May 2023 ( Revised )
Release of answer key	19th May 2023
Official website	rcb.res.in

GAT-B Eligibility

Candidates who need to appear in GAT-B test 2023 must fulfil all the eligibility criteria as per Regional Centre for Biotechnology (RCB). If any candidate fails to fulfil the eligibility criteria, then his/her candidature is liable to be cancelled at any stage of the exam or he/she cannot appear in the further admission process. Given below are some basic highlights of GAT-B 2023 eligibility criteria that every candidate must go through.

Course	Eligibility Criteria
M.V.Sc. Animal Biotechnology	Candidates must have B.V.Sc. & A.H. or equivalent degree from any recognized university with at least a CGPA of 2.60 on a 4.00 scale or 6.60 on a 10.00 scale or must have secured at least 60% marks in the traditional system. Reserved category candidates (SC/ST) must have secured at least 2.20 on a 4.00 scale, 5.60 on a 10.00 scale, and 50% marks.
M.Tech Biotechnology	Candidates must have passed B.Tech/BE degree in the relevant stream with the minimum marks set by the participating university.
M.Sc. Allied Areas/Agricultural Biotechnology	Applicants with BSc. in the respective stream with the minimum marks as per the participating university.

GAT-B Admit Card

Visit the official website of the competent authority, i.e. rcb.res.in.
Click on the admit card link appearing on the home page.
Enter login credentials, such as application number and DOB and then click on the submit button
Your admit card will appear on your screen
Check whether all the details mentioned on your admit card are correct.

GAT-B Syllabus

GAT-B Syllabus of Section A: 10+2 level Physics, Chemistry, Mathematics, and Biology. There are 60 questions in section A. All questions are compulsory. Each correct answer is for 1 mark and 0.5 marks are deducted for every wrong answer.

GAT-B Syllabus of Section B: Graduation level Basic Biology, Life Sciences, Biotechnology, and allied areas. There are 100 questions in section B. Students need to answer any 60 questions. Each correct answer is for 3 marks and 1 mark is deducted for every wrong answer.

GAT-B 2023 Syllabus: Section A

The GAT-B syllabus is designed to test the student’s knowledge at every level of education. The Section A of the syllabus tests the basic knowledge of the students. The detailed syllabus for section A is discussed below:

Subjects	Syllabus
Biology	Diversity in Living World Structural Organisation in Animals and Plants Cell Structure and Function Plant Physiology Human Physiology Reproduction Genetics and Evolution Biology and Human Welfare Biotechnology and Its Applications Ecology and environment
Chemistry	Some Basic Concepts of Chemistry Structure of Atom Classification of Elements and Periodicity in Properties Chemical Bonding and Molecular Structure States of Matter: Gases and Liquids Thermodynamics Equilibrium Redox Reactions Hydrogen s- Block Elements (Alkali and Alkaline earth metals) Some p-Block Elements Organic Chemistry – Some Basic Principles and Techniques Hydrocarbons Environmental Chemistry Solid State Solutions Electrochemistry Chemical Kinetics Surface Chemistry General Principles and Processes of Isolation of Elements p-Block Elements d and f Block Elements Coordination Compounds Haloalkanes and Haloarenes Alcohols, Phenols and Ethers Aldehydes, Ketones and Carboxylic Acids Organic Compounds Containing Nitrogen Biomolecule Polymers Chemistry in Everyday Life
Mathematics	Sets and Functions Algebra Coordinate Geometry Calculus Mathematical Reasoning Statictics and Probability Relations and Functions Vectors and Three-Dimensional Geometry
Physics	Physical World and Measurement Kinematics Laws of Motion Work, Energy and Power Motion of System of Particles and Rigid Body Gravitation Properties of Bulk Matter Thermodynamics Behaviour of Perfect Gas and Kinetic Theory Oscillations and Waves Electrostatics Current Electricity Electromagnetic Induction and Alternating Currents Magnetic Effects of Current and Magnetism Electromagnetic Waves Optics Dual Nature of Matter and Radiation Atoms and Nuclei Electronic Devices Communication Systems

GAT-B 2023 Syllabus: Section B

Section B of GAT-B 2023 tests the advanced knowledge of the student in the field of Biotechnology and allied areas. The detailed syllabus of GAT-B 2023 section B is discussed below:

Units	Details
Unit I	Biomolecules-structure and functions Biological membranes, structure, action potential, and transport processes Enzymes- classification, kinetics, and mechanism of action Basic concepts and designs of metabolism (carbohydrates, lipids, amino acids, and nucleic acids) photosynthesis, respiration, and electron transport chain Bioenergetics.
Unit II	Viruses- structure and classification Microbial classification and diversity (bacterial, algal, and fungal) Methods in microbiology Microbial growth and nutrition Aerobic and anaerobic respiration Nitrogen fixation Microbial diseases and host-pathogen interaction.
Unit III	Prokaryotic and eukaryotic cell structure Cell cycle and cell growth control Cell-Cell communication, Cell signaling, and signal transduction.
Unit IV	Molecular structure of genes and chromosomes Mutations and mutagenesis Nucleic acid replication, transcription, translation, and their regulatory mechanisms in prokaryotes and eukaryotes Mendelian inheritance Gene interaction Complementation Linkage, genetics (plasmids, transformation, transduction, conjugation) Horizontal gene transfer and Transposable elements RNA interference DNA damage and repair Chromosomal variation Molecular basis of genetic diseases
Unit V	Principles of microscopy-light, electron, fluorescent and confocal Centrifugation- high speed and ultra Principles of spectroscopy-UV, visible, CD, IR, FTIR, Raman, MS, NMR Principles of chromatography-ion exchange, gel filtration, hydrophobic interaction, affinity, GC, HPLC, FPLC Electrophoresis Microarray.
Unit VI	History of Immunology Innate, humoral, and cell-mediated immunity Antigen Antibody structure and function Molecular basis of antibody diversity Synthesis of antibody and secretion Antigen-antibody reaction Complement Primary and secondary lymphoid organs B and T cells and macrophages Major histocompatibility complex (MHC) Antigen processing and presentation Polyclonal and monoclonal antibody Regulation of immune response Immune tolerance Hypersensitivity Autoimmunity Graft versus host reaction
Unit VII	Major bioinformatics resources and search tools Sequence and structure databases Sequence analysis (bimolecular sequence file formats, scoring matrices, sequence alignment, phylogeny) Data mining and analytical tools for genomic and proteomic studies Molecular dynamics and simulations (basic concepts including force fields, protein-protein, protein-nucleic acid, protein-ligand interaction)
Unit VIII	Restriction and modification enzymes Vectors- plasmid, bacteriophage and other viral vectors, cosmids, Ti plasmid, yeast artificial chromosome; mammalian and plant expression vectors cDNA and genomic DNA library Gene isolation, cloning and expression Transposons and gene targeting DNA labeling DNA sequencing Polymerase chain reactions DNA fingerprinting Southern and northern blotting In-situ hybridization RAPD, RFLP Site-directed mutagenesis Gene transfer technologies; Gene therapy.
Unit IX	Totipotency Regeneration of plants Plant growth regulators and elicitors Tissue culture and Cell suspension culture: system, methodology, the kinetics of growth and, nutrient optimization Production of secondary metabolites by plant suspension cultures Hairy root culture Transgenic plants Plant products of industrial importance
Unit X	Animal cell culture- media composition and growth conditions Animal cell and tissue preservation Anchorage and non-anchorage dependent cell culture Kinetics of cell growth Micro & macro-carrier culture Hybridoma technology Stem cell technology Animal cloning Transgenic animals
Unit XI	Chemical engineering principles applied to biological system- Principle of reactor design, ideal and non-ideal multiphase bioreactors, mass and heat transfer Rheology of fermentation fluids- Aeration and agitation Media formulation and optimization Kinetics of microbial growth, substrate utilization, and product formation Sterilization of air and media Batch, fed-batch, and continuous processes Various types of microbial and enzyme reactors Instrumentation control and optimization Unit operations in solid-liquid separation and liquid-liquid extraction Process scale-up, economics and feasibility analysis.
Unit XII	Engineering principle of bioprocessing - Upstream production and downstream Bioprocess design and development from lab to industrial scale Microbial, animal, and plant cell culture platforms Production of biomass and primary/secondary metabolites Biofuels, Bioplastics, industrial enzymes, antibiotics Large scale production and purification of recombinant proteins Industrial application of chromatographic and membrane-based bio-separation methods Immobilization of biocatalysts (enzymes and cells) for bioconversion processes Bioremediation-Aerobic and anaerobic processes for stabilization of solid/liquid wastes.
Unit XIII	Tissue culture and its application Micropropagation Meristem culture and production of virus-free plants Anther and microspore culture Embryo and ovary culture Protoplast isolation Protoplast fusion-somatic hybrids and cybrid Somaclones and Synthetic seeds In-vitro germplasm conservation Cryopreservation Organelle DNA Satellite and repetitive DNAs DNA repair Regulation of gene expression Recombinant DNA technology-cloning vectors, restriction enzymes, and gene cloning Methods of gene transfer in plants Achievements and recent developments of genetic engineering in agriculture Development of transgenics for biotic & abiotic stress tolerance Bioethics, terminator technology, and nanotechnology DNA fingerprinting and gene silencing.

GAT-B Exam Pattern

GAT-B questions are MCQ-based only. There are no MSQs or NAT-type questions. Students are awarded points for each correct answer. Marks are deducted for each wrong answer. The detailed exam patterns and marking scheme for GAT-B 2023 are as follows:

Sections	No. of Questions Asked	No. of Questions to be Attempted	Marks Awarded (for each correct answer)	Marks Awarded (for each unanswered question)	Marks deducted (for each wrong answer)	Time Duration
Section A	60	60	+1 (1 x 60)	0	-0.5	180 Minutes
Section B	100	60	+3 (3 x 60)	0	-1
Total	160	120	240	-	-

GAT-B How to Apply

For successful registration, candidates need to apply the following steps properly:

Step 1: Registration

Visit the official website of conducting authority, i.e. rcb.res.in, and click on the “New Registration” link.
You need to enter your name, email ID, date of birth, and mobile number for registration

Step 2: Fill the Application Form

After registration, click on the “Already Registered” button and log in using the User ID and password obtained during registration.
Go through all the on-screen instructions carefully and then click on the declaration button
Enter all the asked personal details, such as your name, gender, category, marital status, address, etc.
You need to enter your qualification details, such as date of passing the exams, marks secured, university name, etc.

Step 3: Upload Required Documents

In this step, you need to upload all the asked documents in the prescribed format and size.

Step 4: Fee Payment

Candidates need to pay the application mode as per their respective category. Check the application fee for all the categories from the following table:

Application Fee

Category	Fee
Gen And OBC	Rs 1200
SC , ST , EWS deffrently abled	Rs 600

Mode of Payment: Application fee can be paid online mode via Net banking/credit card/debit card/UPI, etc.