GATE 2021 Biotechnology (BT) Answer Key (Out) – Get Questions and Solutions Here

GATE 2021 Biotechnology (BT) Answer Key – On this page, candidates can check the GATE Biotechnology answer key 2021. IIT Bombay release GATE BT answer key is released online at The answer key is useful for the candidates to calculate the probable score of the paper after the exam. The candidates have to use the marking scheme of the GATE 2021 CS paper to calculate the estimated scores. Check below the GATE 2021 Biotechnology (BT) Answer Key and more details.

GATE 2021 Biotechnology (BT) Answer Key 

  • Exam Date –  February 13, 2021
  • Time – 09:30 AM to 12:30 PM
  • Subject Paper –  Biotechnology (BT)
  • GATE 2021 Result Date: 22 March 2021

If you appeared for GATE 2021 BT paper, then submit your questions and we will provide you the answer key. Click on the button below to submit answers. All the best!

Check below memory based questions and answers of GATE 2021 BT exam:

Q: CRISPR CAS is a part of
a) Prokaryotes innate immunity
b) prokaryotic adaptive immunity
c) eukaryotic innate immunity
d) eukaryotic adaptive immunity

Q: Coronavirus genome consists of
a) single-stranded DNA
b) Double-stranded DNA
c) sense strand ssRNA
c) antisense strand ssRNA

Q: Database used to compare the six-frame translations of a nucleotide query sequence against the six-frame translations of a nucleotide sequence database

Q: There was a question on 4×4 determinant calculation

Q: Questions were also asked on probability

Q: There were two questions asked from Process control and instrumentation

You can also check: GATE answer keys for all 27 papers

GATE 2021 BT Answer Key Dates

Subsequent to the GATE exam, several coaching teachers publish memory-based answer keys. Applications can check the officially announced GATE 2021 Exam schedule below. 

EventsImportant Dates
GATE 2021 Exam Date06, 07, 13 and 14, Feb 2021
GATE 2021 Result Declaration22 Mar 2021
Last date to download GATE 2021 Scorecard31 May 2021

How to Calculate Score For GATE 2021 BT Exam?

With the release of the GATE answer key, aspirants can calculate their scores for the GATE exam. Check the brief steps on how to calculate GATE estimate scores below. 

1st step: Firstly, download the GATE answer key. Aspirants must also have the response and questions papers before calculating scores. 

2nd step: Compare the answer in the answer key with the response sheet. Note down the number of correct and incorrect answers in a notebook.  

3rd step: The last step is to use the formula available below. 

GATE Scores = (No. of correct question x marks for a correct answer) – (no. of incorrect questions x negative marking)

GATE Marking Scheme

QuestionsCorrect Answer MarksNegative Marking
Multiple Choice Questions (MCQ)+1 or +2 marks-1/3 for -1 mark question
-2/3 for -2 mark question
Numerical Answer Type (NAT)+1 or +2 marksNo Negative Marking

GATE Biotechnology (BT) Paper Cut Off

 The official GATE Biotechnology cut-off marks release with the result declaration. Aspirants can compare their scores with the cut-off marks to know their tentative qualifying status. Check the previous year GATE cut-off marks for Biotechnology subject below.  

YearGeneralOBC (NCL)SC/ ST/ PWD

GATE 2021 Question Paper

Once the answer key for the GATE 2021 Exam releases, the conducting body also publishes the GATE 2021 question paper. Candidates have to login with the enrollment number/ email id and password. Along with the question papers, candidates can also access the link to download the GATE response sheet. Moreover, aspirants will find questions in two sections. The first is the General Aptitude section. The second section is subject based – Biotechnology. 

GATE 2021 Official Biotechnology (BT) Answer Key

IIT Bombay publishes the official answer key for GATE 2021 Biotechnology (BT) online at Aspirants have to log in using the enrollment number/ email Id to download the GATE Biotechnology official answer key. The official answer key carries all the correct answers to questions that are asked in the examination. Refer to the next section to know the detailed procedure on how to download the GATE 2021 Official Biotechnology (BT) answer key. 

How to Download GATE 2021 Official BT Answer Key?

Shortly after the exam, candidates can access the link to download the GATE 2021 Biotechnology Answer Key. Check the brief steps on how to download GATE 2021 BT Answer Key below. 

1st step: The first step is to go to the official website, 

2nd step: Now, click on the GATE 2021 official answer key link. 

3rd step: Enter the enrollment number and password and select the Subject code.

4th step: At last, the GATE answer key appears on the screen. 

GATE 2021 Result

The conducting body declares GATE 2021 result online at the official website, Aspirants require the enrollment number and password to log in and check the result. Moreover, the result releases in the scorecard format wherein aspirants can check their scores. IIT Bombay prepares the result on the basis of the final answer key available on the website. 

About GATE 2021

The Graduate Aptitude Test in Engineering (GATE) for the year 2021 will be conducted by Indian Institute of Bombay (IIT B). Previously, IISc and seven IIT were held responsible for the commencement of the GATE exam. The primary purpose of the GATE exam is to allow eligible candidates M.E / M.Tech / M.Arch / PhD courses. Aspirants can also use GATE scores to participate in the various PSU recruitment through GATE qualification.


Q1. Is there any negative marking in GATE Biotechnology exam?

Ans 1. Yes. In MCQ, there is negative marking on 1/3rd marks of the questions.

Q2. What is the official website to download the GATE Biotechnology response sheet?

Ans 2. Candidates can download the GATE BT answer key from

Q3. What was the GATE cut-off marks for 2020 year?

Ans 3. For general category, the cut-off marks for GATE 2020 were 30.7.

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