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 17 of 37
- A. 40%
- B. 50%
- C. 60%
- D. 70%
Explanation: Crop production is limited by effects of salinization at about 50% of irrigated levels.
Correct answer: 50%- A. Tobacco
- B. Soya bean
- C. Cotton
- D. Sunflower
Explanation: Tens of grams of a-galactosidase, an enzyme that can be used to treat a human lysosome storage disease, were harvested per acre of tobacco…
Correct answer: Tobacco- A. Transfer of gene from one organism to other
- B. It produces insulin
- C. It is used to alter the genotype
- D. All of the above
Explanation: Biotechnology also extends beyond multicellular organisms. It is now possible to alter the genotype and subsequently the phenotype of…
Correct answer: All of the above- A. The cloning of gene of interest
- B. The genes of interest are cut down
- C. The genes of interest are introduced into expression system
- D. None of the above
Explanation: In order to produce recombinant DNA, the following are required: 1. Gene of interest, which is to be cloned. 2.
Correct answer: The cloning of gene of interest- A. Part of DNA pieces
- B. Clone of bacteria with pieces of DNA
- C. Segments of chromosomes
- D. None of the above
Explanation: A genomic library is a collection of bacterial or bacteriophage clones, each clone containing a particular segment of DNA from the source…
Correct answer: Clone of bacteria with pieces of DNA326. RFLP is a:
- A. Fragment of DNA
- B. Fragment of proteins
- C. Fragment of RNA
- D. None of the above
Explanation: Restriction fragment length polymorphism (abbreviated RFLP) refers to differences (or variations) among people in their DNA sequences at…
Correct answer: None of the above- A. Diagnosis of diseases
- B. Uses to identifying rape victim
- C. Disputed parenthood
- D. None of the above
Explanation: PCR amplification and analysis can be used (1) to diagnose viral infections, genetic disorders, and cancer (2) in forensic laboratories to…
Correct answer: None of the above- A. Used in recombinant DNA technology
- B. Used in genomic library
- C. Used in identification of criminals
- D. Used in gene therapy
Explanation: DNA fingerprints have been presented as forensic evidence. A criminal in a deserted place assaulted a woman.
Correct answer: Used in identification of criminals- A. Synthesis of pharmaceutical products
- B. Promoting health in plants
- C. Role in genomic library
- D. Used as biofilter
Explanation: Transgenic bacteria have been produced to promote the health of plants.
Correct answer: Role in genomic library- A. Pest and herb resistance
- B. Increasing production of crops
- C. Synthesis of human products
- D. All of the above
Explanation: The main purpose in the production of transgenic plants is to produce crops, which have ideal traits, quality, and high yield.
Correct answer: Synthesis of human products- A. Higher growth rate of animals
- B. Gene pharming
- C. Gene cloning
- D. None of the above
Explanation: Transgenic animals does not has higher growth rate.
Correct answer: Higher growth rate of animals- A. Genes are inserted inside the body
- B. Genes are inserted outside the body
- C. Genes are transferred through vectors
- D. None of the above
Explanation: Ex vivo gene therapy involves the genetic modification of cells outside of the body to produce therapeutic factors and their subsequent…
Correct answer: Genes are inserted outside the body- A. Genes are inserted inside the body
- B. Genes are inserted outside the body
- C. Genes are transferred through vectors
- D. None of the above
Explanation: In vivo gene therapy is a strategy in which genetic material usually in the form of DNA, is applied to modify the genetic repertoire of…
Correct answer: Genes are inserted inside the body- A. Seeds covered with plastic
- B. Embryo covered with plastic
- C. Embryo covered with gel
- D. None of the above
Explanation: Artificial seeds are artificially encapsulated somatic embryos (usually) or other vegetative parts such as shoot buds, cell aggregates…
Correct answer: Embryo covered with plastic335. Bioreactors are:
- A. Organisms which respond to environment
- B. Place where bacteria are produced
- C. Control of pollution by bacteria
- D. Absorption of chemicals
Explanation: Recombinant DNA technology is used to produce bacteria that reproduce in large vats called bioreactors.
Correct answer: Place where bacteria are produced- A. Effective gene
- B. Faulty gene
- C. Supressive gene
- D. Expressive gene
Explanation: Gene therapy is used to correct defective genes in order to cure a disease or help your body better fight disease.
Correct answer: Faulty gene- A. Less number of copies
- B. Lesser number of copies
- C. More number of copiers
- D. Much more number of copies
Explanation: PCR makes billions of copies of a specific DNA fragment or gene, which allows detection and identification of gene sequences using visual…
Correct answer: Much more number of copies- A. Vector
- B. Scissors
- C. Regulator
- D. Indicator
Explanation: The DNA molecule to which the gene of interest is integrated for cloning is called a vector.
Correct answer: Vector- A. Restriction endonucleases
- B. Reverse transcriptase
- C. Restriction nucleases
- D. Restriction exonucleases
Explanation: A restriction enzyme, restriction endonuclease, REase, ENase or restrictase is an enzyme that cleaves DNA into fragments at or near…
Correct answer: Restriction endonucleases- A. Replicator
- B. Thermocycler
- C. Chemocycler
- D. Cycler
Explanation: PCR-Machines are based on Polymerase Chain Reaction (PCR) and produce copies of genes exponentially.
Correct answer: Thermocycler