Biotechnology

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Q. During which phase do cells prepare for mitosis?
  • A. G1 phase
  • B. S phase
  • C. G2 phase
  • D. M phase
Q. How are monoclonal antibodies typically produced?
  • A. By recombinant DNA technology
  • B. By chemical synthesis
  • C. By fermentation
  • D. By natural extraction
Q. How do special proteins contribute to the nutritional quality of crops?
  • A. By increasing fiber content
  • B. By enhancing vitamin synthesis
  • C. By reducing calorie count
  • D. By improving taste
Q. How do synthetic seeds contribute to food security?
  • A. By reducing crop diversity
  • B. By enabling rapid propagation of high-yield varieties
  • C. By increasing reliance on chemical inputs
  • D. By promoting monoculture farming
Q. How many pairs of chromosomes do most domestic animals have?
  • A. 10
  • B. 23
  • C. 39
  • D. 46
Q. What are synthetic seeds primarily used for?
  • A. To enhance soil fertility
  • B. To propagate plants without seeds
  • C. To increase crop yield
  • D. To improve pest resistance
Q. What compound in red wine is thought to have cardioprotective effects?
  • A. Resveratrol
  • B. Caffeine
  • C. Quercetin
  • D. Flavonoids
Q. What effect does citric acid have on the flavor of food?
  • A. Bitter
  • B. Sour
  • C. Sweet
  • D. Savory
Q. What feature do cloning vectors typically contain to facilitate selection?
  • A. Antibiotic resistance genes
  • B. Introns
  • C. Exons
  • D. Promoters
Q. What happens during the G0 phase?
  • A. Cells prepare for division
  • B. Cells exit the cell cycle and enter a quiescent state
  • C. Cells undergo DNA replication
  • D. Cells actively divide
Q. What is a common application of transgenic mice in research?
  • A. Studying aging processes
  • B. Testing new drugs
  • C. Understanding genetic diseases
  • D. All of the above
Q. What is a common challenge associated with using viral vectors in animal cell culture?
  • A. Low transfection efficiency
  • B. Immune response from the host
  • C. High cost of production
  • D. Limited insert size
Q. What is a common challenge in the synthesis of complex therapeutic agents?
  • A. High yield
  • B. Selectivity of reactions
  • C. Cost-effectiveness
  • D. Stability of intermediates
Q. What is a common concern regarding transgenic plants?
  • A. Increased biodiversity
  • B. Potential for gene transfer to wild relatives
  • C. Higher nutritional value
  • D. Reduced pesticide use
Q. What is a common consequence of chromosomal abnormalities in animals?
  • A. Increased lifespan
  • B. Enhanced fertility
  • C. Genetic disorders
  • D. Improved immunity
Q. What is a common feature of plasmid vectors used in animal cell culture?
  • A. Ability to replicate independently
  • B. Inability to carry antibiotic resistance genes
  • C. Lack of a promoter region
  • D. High molecular weight
Q. What is a common side effect of tetracycline antibiotics?
  • A. Nausea
  • B. Photosensitivity
  • C. Diarrhea
  • D. Rash
Q. What is a common symptom of obsessive-compulsive disorder (OCD)?
  • A. Compulsive eating
  • B. Repetitive hand washing
  • C. Extreme shyness
  • D. Chronic fatigue
Q. What is a common treatment for attention-deficit/hyperactivity disorder (ADHD)?
  • A. Antidepressants
  • B. Stimulant medications
  • C. Antipsychotics
  • D. Mood stabilizers
Q. What is a key advantage of using microfluidic biochips?
  • A. High cost
  • B. Large sample volume
  • C. Reduced reagent consumption
  • D. Complex manufacturing process
Q. What is a key advantage of using yeast artificial chromosomes (YACs) as cloning vectors?
  • A. Ability to clone large DNA fragments
  • B. High transformation efficiency
  • C. Low cost
  • D. Simple construction
Q. What is a major advantage of using synthetic seeds?
  • A. They require more water
  • B. They can be stored for longer periods
  • C. They are more susceptible to diseases
  • D. They are less expensive to produce
Q. What is a potential benefit of transgenic livestock?
  • A. Higher meat quality
  • B. Increased disease susceptibility
  • C. Longer gestation periods
  • D. Reduced feed efficiency
Q. What is a potential drawback of synthetic seeds?
  • A. They are environmentally friendly
  • B. They can be expensive to produce
  • C. They require less labor
  • D. They are easy to store
Q. What is a potential health benefit of consuming vinegar?
  • A. Lowering blood sugar levels
  • B. Increasing cholesterol levels
  • C. Dehydration
  • D. Weight gain
Q. What is a potential risk associated with the cultivation of transgenic crops?
  • A. Increased crop yields
  • B. Development of resistant pests
  • C. Improved nutritional content
  • D. Lower production costs
Q. What is a potential side effect of monoclonal antibody therapy?
  • A. Weight gain
  • B. Infusion reactions
  • C. Increased appetite
  • D. Hair loss
Q. What is a serious side effect associated with the use of aminoglycosides?
  • A. Hepatotoxicity
  • B. Nephrotoxicity
  • C. Cardiotoxicity
  • D. Ototoxicity
Q. What is a significant source of indoor air pollution?
  • A. Outdoor plants
  • B. Radon gas
  • C. Fresh air ventilation
  • D. Natural sunlight
Q. What is a transgenic organism?
  • A. An organism with DNA from the same species
  • B. An organism that has been genetically modified to contain DNA from another species
  • C. An organism that has not been genetically modified
  • D. An organism that only reproduces asexually
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