Free Biotechnology MCQs with Answers
731 Biotechnology MCQs from Biology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Biotechnology in health care applies biological organisms, cells or enzymes to diagnose and treat disease. The subject includes recombinant DNA, genetically engineered insulin, vaccines, antibiotics, monoclonal antibodies, gene therapy and techniques such as polymerase chain reaction, while distinguishing therapeutic applications from agricultural and industrial biotechnology.
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Read the Biotechnology notesFree MDCAT chapter notes with key terms731 questions · page 34 of 37
- A. Addition of preservatives to the product.
- B. Purification of the product.
- C. Ensuring anaerobic conditions in the culture vessel.
- D. Availability of oxygen throughout the process.
Explanation: A stirred-tank bioreactor is usually cylindrical or with a curved base to facilitate the mixing of the reaction contents.
Correct answer: Availability of oxygen throughout the process.- A. Pollen grain
- B. Root tips
- C. Young leave
- D. Endosperm.
Explanation: Haploid plants are those plants that have a single set of chromosomes. Pollen grains are haploid as they are produced after meiosis so…
Correct answer: Pollen grain- A. DNA polymerases
- B. DNA ligases
- C. Restricted endonucleases
- D. Reverse transcriptases
Explanation: Reverse transcriptases are used to synthesize cDNA from RNA (e.g. mRNA) template.
Correct answer: Reverse transcriptases- A. DNA of bacteria
- B. DNA of plant viruses
- C. DNA of bacterial viruses
- D. DNA of animal viruses
Explanation: DNA of bacteriophage or phage virus or bacterial virus is also used as vector.
Correct answer: DNA of bacterial viruses- A. Transgenic animal
- B. Transgender animal
- C. Clone
- D. Trans sexual animal
Explanation: An animal in which we have incorporated a desired foreign gene to get produced our desired product is called transgenic animal.
Correct answer: Transgenic animal- A. Only female produce milk
- B. Females don't produce milk until maturity
- C. Each animal urinate throughout life
- D. It is easier to extract proteins from urine than from milk
Explanation: As urine normally does not contain any protein thus it is easier to extract proteins from urine than from milk.
Correct answer: It is easier to extract proteins from urine than from milk- A. SCIDS
- B. Cystic fibrosis
- C. Hypercholesterolemia
- D. Cardio vascular disorder
Explanation: In familial hypercholesterolemia liver cells lack specific receptor sites needed to remove cholesterol from blood.
Correct answer: Hypercholesterolemia- A. Gene therapy
- B. Transplant therapy
- C. Chemotherapy
- D. Gene therapy through transplant
Explanation: Parkinson's disease is caused by deficiency of dopamine, a neurotransmitter of brain. When its deficiency is made up it is cured.
Correct answer: Gene therapy through transplant- A. He ought to speak French well. He lived there for twenty years.
- B. He ought to speak French well. He lived in France for twenty years.
- C. He ought to speak French well. He lived there since twenty years.
- D. He ought to speak French well. He has been living there for twenty years.
Explanation: This option is correct because it clearly specifies the location (France) where he lived for twenty years, making the sentence more…
Correct answer: He ought to speak French well. He lived in France for twenty years.- A. The Ballet School has some pianists on salary; others are paid by the hour.
- B. The Ballet School has some pianists on salary; others are paid by per hour.
- C. The Ballet School has some pianists on the salary; others are paid by the hour.
- D. Ballet School has some pianists on salary; the others are paid by the hour.
Explanation: The sentence is describing the payment arrangements for pianists at the Ballet School, and the correct form is to use the preposition "by"…
Correct answer: The Ballet School has some pianists on salary; others are paid by the hour.- A. He was good, the bad and ugly in one person.
- B. He was the good, bad and ugly in one person.
- C. He was good, bad and the ugly in one person.
- D. He was the good, the bad and the ugly in one person.
Explanation: The correct answer is D. He was the good, the bad and the ugly in one person.
Correct answer: He was the good, the bad and the ugly in one person.- A. Inositides
- B. Lipoproteins
- C. Liposomes
- D. Drugoles
Explanation: Liposomes are lipid vesicles that are used as a drug delivery system. They are made up of a phospholipid bilayer and can encapsulate both…
Correct answer: Liposomes- A. Pluripotent stem cells
- B. Blood stem cells
- C. Cord blood stem cells
- D. Both a and b
Explanation: The umbilical cord is a flexible cord-like structure that connects a developing fetus to the placenta in the mother's womb.
Correct answer: Cord blood stem cells- A. Chickenpox
- B. Smallpox
- C. Avian pox
- D. Cowpox
Explanation: Edward Jenner inoculated humans with cowpox pus. The basis for vaccination began in 1796 when the English doctor Edward Jenner noticed…
Correct answer: Cowpox- A. 10-15 degrees
- B. 25-30 degrees
- C. 25-35 degrees
- D. 25-40 degrees
Explanation: Ethanol is prepared industrially by a process called fermentation, which occurs in the presence of certain enzymes and under optimum…
Correct answer: 25-35 degrees- A. Transduction
- B. Transformation
- C. Binary fission
- D. Conjugation
Explanation: Option B is correct since the transformation is the process of transmitting genetic information from one bacterium to another bacterium…
Correct answer: Transformation- A. HBV
- B. HAV
- C. HCV
- D. Options A and B are correct
Explanation: Option (d) suggests that both the Hepatitis B virus (HBV) and the Hepatitis A virus (HAV) have genetically engineered vaccines available.
Correct answer: Options A and B are correct- A. Antiseptic
- B. Disinfectant
- C. Germicide
- D. All of these
Explanation: Correct option:D(Formalin's function includes all the options)Formalin, which is a solution of formaldehyde gas dissolved in water, is…
Correct answer: All of these- A. One cell control activities of others
- B. One cell transfers its activities to others
- C. One cell destroys other cells
- D. One cell transfers germs to another cell
Explanation: In metastasis, cancer cells break away from where they first formed (primary cancer), travel through the blood or lymph system, and form…
Correct answer: One cell transfers its activities to others- A. Rickets
- B. Anemia
- C. Heart disorders other than stroke
- D. Stroke
Explanation: Correct option is B. Conditions that can cause increased LDH (lactate dehydrogenase and lactic acid dehydrogenase) in the blood may…
Correct answer: Anemia