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 37 of 37
- A. Transgenic
- B. Probe
- C. Recombinant
- D. Plasmid
Explanation: These plants and animals are called transgenic or genetically modified organisms, a probe is a single stranded DNA or RNA sequence used to…
Correct answer: Transgenic- A. 60 oC
- B. 71 oC
- C. 50 oC
- D. 80 oC
Explanation: Pasteurization of milk, requires temperatures of about 63 °C (145 °F) maintained for 30 minutes or, alternatively, heating to a higher…
Correct answer: 71 oC- A. 15 to 24.9
- B. 17.5 to 24.9
- C. 18.5 to 24.9
- D. 25 to 29.9
Explanation: Body Mass Index (BMI) is a calculation that considers an individual's weight in relation to their height to estimate body fat.
Correct answer: 25 to 29.9724. Which one of the following discovered the vaccine for first time against the small pox in 1796.
- A. Edward Jenner
- B. Louis Pasteur
- C. F. H. Herbor
- D. James Phipps
Explanation: Edward Jenner is credited with developing the first successful smallpox vaccine in 1796.
Correct answer: Edward Jenner- A. pBR 322
- B. Npq 303
- C. oSR 210
- D. kMG 319
Explanation: The correct answer is pBR 322. Plasmids like pBR 322 are naturally occurring extrachromosomal DNA molecules in bacteria that have been…
Correct answer: pBR 322- A. 1980
- B. 1982
- C. 1984
- D. 1986
Explanation: The first field trials of genetically engineered plants were conducted in 1986 in France and the USA, focusing on tobacco plants…
Correct answer: 1986- A. Sterilization -> media preparation -> inoculation -> callus development -> plantlets
- B. Media preparation -> sterilization -> inoculation -> callus development -> plantlets
- C. Media preparation -> inoculation -> sterilization -> callus development -> plantlets
- D. Inoculation -> sterilization -> media preparation -> callus development -> plantlets
Explanation: The correct sequence of the tissue culture method is: Media preparation -> Inoculation -> Sterilization -> Callus development ->…
Correct answer: Media preparation -> inoculation -> sterilization -> callus development -> plantlets- A. Increased rate of cell division
- B. Immunization with antigen
- C. To avoid contamination
- D. As nutrient in media
Explanation: Multiple myeloma cells are abnormal plasma cells (a type of white blood cell) that build up in the bone marrow and form tumors in many…
Correct answer: Immunization with antigen- A. Southern blotting
- B. Northern blotting
- C. Western blotting
- D. All of the above
Explanation: The process where DNA fragments are transferred to a nylon sheet on a gel is called Southern blotting.
Correct answer: Southern blotting- A. Bacteria:
- B. Yeast:
- C. Algae:
- D. Either (A) or (B)
Explanation: Whey, the liquid part of milk that remains after the formation of curds during the cheese-making process, is rich in nutrients and can be…
Correct answer: Either (A) or (B)- A. Streptomyces achrmpogene
- B. Serratia marcescens
- C. Streptococcus pyogens
- D. Staphylococcus aureus
Explanation: So, the restriction enzyme SmaI, which stands for Serratia marcescens enzyme, is derived from the bacterium Serratia marcescens.
Correct answer: Serratia marcescens