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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- A. Neurospora.
- B. Aspergillus.
- C. Griseofulvin.
- D. Lovastatin.
Explanation: Statins are the most common medicine for high cholesterol. They reduce the amount of cholesterol your body makes.
Correct answer: Lovastatin.- A. Soybean.
- B. Digitalis lanata
- C. Cinchona ledgeriana.
- D. Luceferin.
Explanation: Quinine is a bitter compound that comes from the bark of the cinchona tree.
Correct answer: Cinchona ledgeriana.- A. DNA polymerase I
- B. DNA ligase
- C. DNA polymerase ITI
- D. Taq polymerase
Explanation: Explanation:Taq polymerase is very thermo stable as it is derived from bacteria Thermophilus aquaticus that lives in hot geysers.
Correct answer: Taq polymerase- A. Wheat Plant
- B. Tobacco Plant
- C. Rice Plant
- D. Corn Plant
Explanation: Explanation:Tobacco plants are commonly used for producing antigens to treat non-hodgkin lymphoma.Wheat is not commonly used for producing…
Correct answer: Tobacco Plant- A. Ribosomes
- B. Plasmids
- C. Nucleoids
- D. Mesosomes
Explanation: Explanation:This option is correct because plasmids are one of the most useful and important vectors.
Correct answer: Plasmids- A. Restriction enzymes
- B. cDNA (complementary DNA)
- C. Vector
- D. Reverse transcriptase
Explanation: [A] Restriction enzymes recognize a specific sequence of nucleotides in double stranded DNA and cut the DNA at a specific location [B]…
Correct answer: Reverse transcriptase- A. pSC 101
- B. pCR 101
- C. pBR 322
- D. pBR 233
Explanation: [A] pSC101 has antibiotic resistance for tetracycline only[C] pBR322 has antibiotic resistance gene for both Tetracycline and…
Correct answer: pBR 322- A. Cultural Control
- B. Biological Control
- C. Pesticides Control
- D. Insecticides Control
Explanation: Control of pests by means of introducing natural predators or diseases affecting the pests comes under the umbrella of biological control.
Correct answer: Biological Control689. A method in which pests are destroyed by using same living organisms or natural enemies is called
- A. Pasteurization
- B. Integrated disease management
- C. Biological control
- D. Genetic engineering
Explanation: Control of pests by means of introducing natural predators or diseases affecting the pests comes under the umbrella of biological control.
Correct answer: Biological control- A. Antigen
- B. Biocidal
- C. Antiseptics
- D. Antibiotics
Explanation: Antibiotics are chemicals which are produced by micro-organisms, and are particularly adept at destroying bacteria
Correct answer: Antibiotics- A. Clonal plants
- B. Transgenic plants
- C. Biotech plants
- D. Tissue cultured plants
Explanation: The term transgenic indicates an organism that contains genetic material from a foreign source.
Correct answer: Transgenic plants- A. Complementary DNA
- B. Recombinant DNA
- C. Chimeric DNA
- D. Plasmid DNA
Explanation: The DNA molecule formed from messenger-RNA (mRNA) by reverse transcriptase is called complementary DNA (cDNA).
Correct answer: Complementary DNA- A. Na+ ions
- B. Cl- ions
- C. Ca++ ions
- D. K+ ions
Explanation: Cystic fibrosis is a genetic disorder caused by a mutation in the cystic fibrosis trans-membrane conductance regulator (CFTR) gene.
Correct answer: Cl- ions- A. Parasitology
- B. Biochemistry
- C. Biotechnology
- D. Molecular biology
Explanation: The exploitation of biological process for industrial and other purposes, especially the genetic manipulation of microorganisms for the…
Correct answer: Biotechnology- A. Clone plants
- B. Transgenic plants
- C. Parthenocarpic plpants
- D. Mutant plants
Explanation: Transgenic plants are plants into which one or more genes from another species have been introduced into the genome, using genetic…
Correct answer: Transgenic plants- A. Penicillin
- B. Streptomycin
- C. Sulfonamide
- D. Tetracycline
Explanation: Tetracycline is a short-acting antibiotic that inhibits bacterial growth by inhibiting translation.
Correct answer: Tetracycline- A. Ampicillin and aspirin
- B. Streptomycin and metronidazole
- C. Ampicillin and Tetracycline
- D. Penicillin and metronidazole
Explanation: Ampicillin is a medication used to manage and treat certain bacterial infections.
Correct answer: Ampicillin and Tetracycline- A. Epithelial cells
- B. Endothelial cells
- C. Plasma cells
- D. Blood cells
Explanation: Cystic fibrosis is an autosomal recessive disease caused by the loss of function of cystic fibrosis transmembrane conductance regulator…
Correct answer: Epithelial cells- A. Exonucleases
- B. Endonucleases
- C. Polymerases
- D. Reverse transcriptases
Explanation: Endonucleases also known as restriction enzymes are molecular scissors as they cleave DNA at or near specific sequences known as…
Correct answer: Endonucleases- A. Heating→ Cooling → Add Primer→ Copying of strand
- B. Heating→ Add Primer→ Cooling→ Copying of strand
- C. Add Primer →Heating→ Cooling →Copying of strand
- D. Cooling→ Add Primer→ Heating →Copying of strand
Explanation: Polymerase chain Reaction The polymerase chain reaction is a method widely used to rapidly make millions to billions of copies of a…
Correct answer: Heating→ Cooling → Add Primer→ Copying of strand