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Biotechnology MCQs for MDCAT

6 Biotechnology questions from real MDCAT past papers (2020), each with the correct answer and a written explanation.

6 questionsBiology

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1Biologyrecombinant dna

The DNA that has been altered and which now contains length of nucleotides from two different organisms is called a

  1. A.Plasmid
  2. B.Combined DNA
  3. C.Vector
  4. D.Recombinant DNA

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2Biologypcr

It is a method for rapid production of a very large number of copies of a particular fragment of DNA

  1. A.Gel electrophoresis
  2. B.Polymerase chain reaction
  3. C.DNA extraction
  4. D.Recombination

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3BiologyrDNA tools

Which of the following is the components/ tools of recombinant DNA technology?

  1. A.Gene of interest
  2. B.Molecular scissors
  3. C.Molecular glue and expression system
  4. D.All of the above

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4Biologygel electrophoresis

Gel electrophoresis is a technique

  1. A.Employed by forensic scientists to assist in the identification of the individuals by their respective type of DNA
  2. B.Collect all the genes found in one complete set of chromosomes
  3. C.Is a technique to separate different size fragment of charge bearing polymers (proteins, RNA or DNA)
  4. D.Grows single cells of a group of cells in a glass ware on artificial medium under aseptic conditions

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5Biologytransgenic organisms

Transgenic organisms

  1. A.Havae a foreigh gene inserted into them
  2. B.Have an important role in the large scale production of medicinal products
  3. C.Are considered beneficial to humans
  4. D.All of the above

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6Biologypcr reagents

Which of the following is not necessary for PCR to occur?

  1. A.dATP
  2. B.primers
  3. C.DNA fragments
  4. D.Ribonucleotides

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How Biotechnology is examined

Biotechnology sits in the official PMDC Biology curriculum, the document that defines what can and cannot appear in the 2026 paper. Everything on this page is tagged against that curriculum rather than against a chapter list invented for a website, which is why a chapter here matches the chapter your textbook and your teacher use.

Biology carries 81 of the 180 questions in the real paper - 45% of your MDCAT score, and the MDCAT is half your merit aggregate. PMDC does not publish how those 81questions are split across chapters, so no honest page can tell you “expect four from Biotechnology”. What the archive can tell you is what actually appeared: 6 Biotechnology questions out of the 77 Biology questions digitised so far.

Work through them with the explanations rather than checking answer letters. The explanation says why the other three options are wrong, and distractors get reused across years far more reliably than whole questions do.

Frequently asked questions

How many Biotechnology MCQs are on this page?
6, drawn from one past paper - the 2020 paper. Every one is transcribed from the real paper rather than written to look like a past paper question, and each carries the correct answer with a written explanation. 0 of them are readable in full without an account.
Is Biotechnology in the MDCAT 2026 syllabus?
Yes. Biotechnology is a chapter of the official PMDC Biology curriculum, and PMDC has confirmed the 2026 syllabus is unchanged from the 2025 revision, so everything on this page is still examinable.
How many Biotechnology questions come up in the MDCAT?
PMDC does not publish a per-chapter breakdown, so nobody can tell you a reliable number - be careful with pages that do. What can be counted is the paper as a whole: Biology is 81 of the 180 questions, and 8% of the Biology questions in our archive so far have come from Biotechnology.
Do these Biotechnology MCQs come with explanations?
Yes, and they are written from scratch rather than copied. An answer letter tells you nothing about why the other three options are wrong, which is the part that transfers to the next question. The first 0 questions of every paper are free to read in full; the rest need a pass.