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 18 of 37
- A. Plasma
- B. Blood
- C. Serum
- D. All of these
Explanation: The biological material used to determine a DNA profile include blood, semen, saliva, urine, feces, hair, teeth, bone, tissue and cells.
Correct answer: All of these- A. Precursor molecules
- B. Pollutants
- C. Totipotent
- D. Activators
Explanation: In chemistry, a precursor is a compound that participates in a chemical reaction that produces another compound.
Correct answer: Precursor molecules- A. Herbicide
- B. Gremicide
- C. Insecticide
- D. Fungicide
Explanation: Herbicide resistant plants are Wheat, rice, sugar beets, canola.
Correct answer: Herbicide- A. Eggs
- B. Body cells
- C. Eggs and sperms
- D. Bacteria
Explanation: Bacterial cells take up recombinant plasmid, especially, if they are treated with calcium chloride to make them more permeable.
Correct answer: Bacteria- A. Ecology
- B. Physiology
- C. Morphology
- D. Biotechnology
Explanation: Urine is a preferable vehicle for a biotechnology product than milk because all animals in a herd urinate - only females produce milk…
Correct answer: Biotechnology- A. Episomes vehicles
- B. Liposomes vehicles
- C. Eposomes vehicles
- D. Disomic vehicles
Explanation: Cystic fibrosis patients lack a gene that codes for trans-membrane carrier of the chloride ion.
Correct answer: Liposomes vehicles- A. Stomach
- B. Blood
- C. Brain
- D. Kidneys
Explanation: To cure Parkinson's disease, dopamine-producing cells could be grafted directly into the brain.
Correct answer: Brain- A. Hybridization
- B. Mutations
- C. Variations
- D. Somaclonal variations
Explanation: Somaclonal variation is the variation seen in plants that have been produced by plant tissue culture.
Correct answer: Somaclonal variations- A. Gel
- B. Hyrdated gel
- C. Electrophoresis
- D. Sol
Explanation: Somatic embryos that are encapsulated in a protective hydrated gel (and sometimes called artificial seeds)
Correct answer: Hyrdated gel- A. Cell culture
- B. Meristem culture
- C. Anther culture
- D. Cell suspension culture
Explanation: A cell suspension or suspension culture is a type of cell culture in which single cells or small aggregates of cells are allowed to…
Correct answer: Cell suspension culture- A. Sensitivity
- B. Fertility
- C. Productivity
- D. Insensitivity
Explanation: Genetically, engineered bacteria have been used to clean up environmental pollutants, increase the fertility of the soil, and kill insect…
Correct answer: Fertility- A. B-galactosidase
- B. a-galactosidase
- C. Galactosidase
- D. a and B-galactosidase
Explanation: Tens of grams of a-galactosidase, an enzyme that can be used to treat a human lysosome storage
Correct answer: a-galactosidase- A. Tissue culture
- B. Cloning
- C. Angioplasty
- D. Gene therapy
Explanation: Tissue culture (TC) is the cultivation of plant cells, tissues, or organs on specially formulated nutrient media.
Correct answer: Tissue culture- A. Recombinant DNA
- B. Cuts double stranded DNA
- C. Four or six
- D. Bind by supplementary base pair
Explanation: First the gene of interest is cut and paste into a vector, such as a plasmid, to form recombinant DNA.
Correct answer: Recombinant DNA355. Sticky ends are:
- A. Bind by supplementary base pair
- B. An expression system
- C. Four or six
- D. Complementary ends of DNA
Explanation: The single stranded but complementary ends of the two DNA molecules are called "sticky ends" because they can bind by complementary base…
Correct answer: Complementary ends of DNA356. Cuts the plasmid:
- A. Chimaeric DNA
- B. Takes up recombined plasmid
- C. DNA ligase
- D. Cloned genes
Explanation: DNA ligase is a type of enzyme that facilitates the joining of DNA strands together by catalyzing the formation of a phosphodiester bond.
Correct answer: DNA ligase357. Host cell takes up:
- A. DNA ligase
- B. Cloned genes
- C. Recombined plasmid
- D. Chimaeric DNA
Explanation: Bacterial cells take up recombinant plasmid, especially, if they are treated with calcium chloride to make them more permeable.
Correct answer: Recombined plasmid358. pBR 322 is:
- A. Antibiotic resistance genes for tetracycline and ampicillin
- B. Chimaeric DNA
- C. Takes up recombined plasmid
- D. DNA ligase
Explanation: pBR 322 has antibiotic resistance genes for tetracycline as well as ampicillin.
Correct answer: Antibiotic resistance genes for tetracycline and ampicillin359. Lambda phage is:
- A. Bacteria
- B. Slicing of DNA
- C. Bacterial virus
- D. Attaches to the host
Explanation: Enterobacteria phage λ (lambda phage, coliphage λ, officially Escherichia virus Lambda) is a bacterial virus, or bacteriophage, that…
Correct answer: Bacterial virus360. Genomic library:
- A. Replication
- B. Replacing
- C. To search the genetic library
- D. Slicing of DNA
Explanation: A genomic library is a collection of DNA segments (clones) from the species of interest, inserted in a microbial vector.
Correct answer: To search the genetic library