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GATE Biotechnology (BT) 2023 Subject Wise Weightage, Important Topics, Best Books

Diksha Sharma
Diksha SharmaUpdated On: August 25, 2022 05:33 pm IST | GATE

Check GATE 2023 Biotechnology chapter or subject wise weightage here along with 2021 & 2020 question paper analysis. In addition, check the list of best books for GATE BT here.

GATE Biotechnology (BT) Subject Wise Weightage, Important Topics, Best Books

GATE Biotechnology (BT) 2023 Subject Wise Weightage: Biotechnology Engineering is one of the most popular exams of GATE. With the GATE 2023 exam upcoming, many students are wondering about the important topics & subject wise weightage for the GATE Biotechnology paper. GATE is a major entrance exam for which lakhs of candidates register every year. The candidates who qualify for the entrance exam are provided admission to M.Tech programs at the top tier Engineering Institutes in India. Having a knowledge about the subject-wise weightage and important topics will help the candidates retain their focus on vital components of the syllabus and hence, score well in the exam. Meanwhile, learning about some of the best books for GATE Biotechnology will also help the candidates through their preparation.

The following article will overview the GATE Biotechnology (BT) 2023 subject-wise weightage, important topics and best books for preparation.

Note- The GATE Biotechnology (BT) subject-wise weightage given in this article is as per the 2022 official notification. We will update the GATE 2023 Biotechnology (BT) subject-wise weightage once the official notification for the 2023 academic year will be released.

GATE Biotechnology (BT) Cutoff

GATE Syllabus (PDF)

GATE 2023 Biotechnology (BT) Subject Wise Weightage

The GATE 2023 Biotechnology (BT) subject wise weightage will help the candidates understand the important components of the GATE BT syllabus. The below table demonstrates the GATE 2023 BT subject wise weightage that has been prepared on the basis of the previous year’s weightage analysis:


Important Topics

Expected Marks Weightage


  • Linear Algebra
  • Calculus
  • Probability & Statistics



  • Biomolecules- Structure & Functions
  • Enzymes- Classification, Kinetics & Mechanism of Action
  • Respiration & Electron Transport Chain



  • Nitrogen Fixation
  • Microbial Classification
  • Virus Classifications
  • Microbial Diseases

Cell Biology

  • Prokaryotic Cell Structures
  • Cell Cycle
  • Cell Growth Control (Cancer)

Molecular Biology & Genetics

  • Molecular STructure of Genes & Chromosomes
  • Mutation & Mutagenesis
  • Nucleic Acid Replication, Transcription, Translation
  • DNA Damage & Repair

Analytical Techniques

  • Chromatography & its Principles
  • Principles of Spectroscopy
  • Microarray


  • Antibody Classification
  • Antigen-Antibody Reaction
  • Major Histocompatibility Complex (MHC)
  • Complement Pathway


  • Analytics Tools
  • Major Bioinformatic Tools
  • Sequence & Structure Database
  • Phylogeny

Recombinant DNA Technology (Genetic Engineering)

  • Restriction & Modification Enzymes
  • Vectors & Plasmid
  • DNA Sequencing
  • Polymerase Chain Reaction
  • In-situ Hybridisation

Plant & Animal Biotechnology

  • Media Compositions & Growth Conditions
  • Kinetics of Cell Growth
  • Anchorage & Non-Anchorage Dependent Cell Structure
  • Transgenic Animals
  • Totipotency
  • Regeneration of Plants
  • Production of Secondary Metabolites

Bioprocess Engineering & Process Biotechnology

  • Rheology of Fermentation Fluids
  • Mass & Heat Transfer
  • Kinetics of Microbial Growth
  • Aeration & Agitation
  • Bioprocess Design & Development
  • Biofuels, Bioplastics, Industrial Enzymes, Antibiotics
  • Biomass Production

General Aptitude



What is a Good Score for GATE 2023 Biotechnology (BT)?

What is a good score in the GATE 2023 Biotechnology paper? Let us understand it with the help of the below table:


Good Score (Expected)







Cell Biology


Molecular Biology & Genetics


Analytical Techniques






Recombinant DNA Technology (Genetic Engineering)


Plant & Animal Biotechnology


Bioprocess Engineering & Process Biotechnology


GATE BT 2020 & 2019 Subject Wise Weightage

Given below are the subject wise weightage for GATE BT 2023 and 2019 which will further help the candidates learn about the important topics of the GATE BT syllabus:


Marks Weightage 2020

Marks Weightage 2019

Engineering Mathematics



Plant and Animal Biotechnology






Bioprocess Engineering



General Aptitude



List of Best Books for GATE BT 2023

When it comes to GATE preparation, the chances of a good preparation greatly depend on the books which you use for studying. Listed below are some of the best books for GATE BT 2023 as per the latest syllabus which will help you score well in the exam:

Name of the Book


Prescott's Microbiology

Christopher J. Woolverton, Joanne Willey, and Linda Sherwood


Barbara Anne Osborne and Janis Kuby

Principles and Techniques of Biochemistry and Molecular Biology

Wilson Keith

Cell and Molecular Biology: Concepts and Experiments

Gerald Karp and Nancy L Pruitt

Molecular Cell Biology

David Baltimore and Harvey Lodish

Roitt's Essential Immunology

Ivan Roitt

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We hope that this article on  GATE Biotechnology (BT) subject-wise weightage was helpful and informative.For more updates related to the GATE exam, stay tuned to College Dekho.

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Electrical Engineering 2019

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GATE Biotechnology (BT) 2019

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GATE Agricultural Engineering (AG) Answer key 2018

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Diksha Sharma, Student / Alumni

Dear Student,

The P.T.Lee Chengalvaraya Naicker Polytechnic College application form usually begins after the declaration of class Xth board exam results (CBSE, ICSE, etc) every year.

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Dear Student,

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