Free Biotechnology and Health Care MCQs with Answers
233 Biotechnology and Health Care 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 applies genetic engineering, cell culture and recombinant DNA methods to medicine and public health. The material includes production of insulin, vaccines and antibiotics, diagnostic techniques, gene therapy, genetically modified organisms and the ethical concerns surrounding manipulation of human genes.
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233 questions · page 9 of 12
- A. X-ray
- B. Ultrasound
- C. Amniocentesis
- D. Complete Blood Count
Explanation: The correct answer is amniocentesis. This procedure involves extracting a small amount of amniotic fluid, which contains fetal cells, to…
Correct answer: Amniocentesis- A. Okazaki fragment
- B. Palindromic sequences
- C. Promoter sequences
- D. Primer
Explanation: In molecular biology, palindromic sequences are referred to as the sequence of nucleotides in the DNA duplex or RNA, where the sequence in…
Correct answer: Palindromic sequences- A. RNA polymerase
- B. DNA polymerase
- C. Taq polymerase
- D. DNA ligase
Explanation: Like DNA replication in an organism, PCR requires a DNA polymerase enzyme that makes new strands of DNA, using existing strands as…
Correct answer: Taq polymerase- A. Animal husbandry
- B. Wild life management
- C. Hybrid breeding
- D. Livestock management
Explanation: The study of the proper care, breeding, and management of economically important domesticated animals is known as animal husbandry.
Correct answer: Animal husbandry- A. Antiseptics
- B. Disinfectants
- C. Pasteurization
- D. Antibiotics
Explanation: Pasteurization is indeed a physical method used to control bacteria in food and beverages.
Correct answer: Pasteurization- A. Restriction endonuclease-production of RFLP
- B. DNA ligase-production of sticky ends in restriction fragments
- C. Reverse transcription-production of cDNA
- D. PCR-gene amplification
Explanation: PCR is a very sensitive technique that allows rapid amplification of a specific segment of DNA.
Correct answer: PCR-gene amplification- A. Gel electrophoresis
- B. RFLP analysis
- C. Polymerase chain reaction
- D. Tissue culture
Explanation: PCR is a technique used to amplify a specific region of DNA, generating millions of copies of that region.
Correct answer: Polymerase chain reaction- A. Produce cDNA
- B. Cut plasmid DNA
- C. Join DNA at sticky ends
- D. Clone DNA
Explanation: In genetic engineering, restriction enzymes are used for cutting DNA fragments.
Correct answer: Cut plasmid DNA- A. Each cell has full genetic potential of the organism
- B. A single cell could become a complete plant
- C. Because they have lesser potential for tissue culturing
- D. Both A and B
Explanation: Each cell has the full genetic potential of the organism, and a single cell could become a complete plant.
Correct answer: Both A and B- A. Thermus aquaticus
- B. Thermus floral
- C. Floral aquaticus
- D. Taq aquaticus
Explanation: Taq polymerase is a heat-stable DNA polymerase that is used in the polymerase chain reaction (PCR) to amplify DNA.
Correct answer: Thermus aquaticus- A. Electrophoresis
- B. Micrometry
- C. Microscopy
- D. Chromatography
- E. Spectrophotometry
Explanation: Spectrophotometry is a quantitative analytical technique used to measure the absorbance or transmittance of light by a substance.
Correct answer: Spectrophotometry172. A plasmid is
- A. A chromosome
- B. Circular extrachromosomal DNA
- C. A protein
- D. A virus
Explanation: Plasmids are small, circular, extrachromosomal DNA molecules in bacteria used as vectors in genetic engineering.
Correct answer: Circular extrachromosomal DNA- A. Natural breeding
- B. In vitro fertilization
- C. Somatic cell nuclear transfer
- D. Gene therapy
Explanation: Dolly was the first mammal cloned from an adult somatic cell using nuclear transfer (SCNT).
Correct answer: Somatic cell nuclear transfer- 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