How to do scientific experiments using fruit flies
  • 1. What is the scientific name for the common fruit fly used in experiments?
A) Drosophila melanogaster
B) Apis mellifera
C) Musca domestica
D) Caenorhabditis elegans
  • 2. Why are fruit flies a good model organism for scientific research?
A) Large size and ease of handling
B) Resistance to environmental changes
C) Short life cycle and easy to breed
D) Complex genome similar to humans
  • 3. What is the approximate life cycle length of a fruit fly at 25°C?
A) About 10 days
B) About 30 days
C) About 1 day
D) About 60 days
  • 4. Which of the following is NOT a common food source for fruit flies in the lab?
A) Yeast
B) Cornmeal-molasses agar
C) Raw meat
D) Instant potato flakes
  • 5. How can you distinguish between male and female fruit flies?
A) Females have darker eyes
B) Males have pointed abdomens
C) Females are smaller than males
D) Males have sex combs on their front legs
  • 6. What is the purpose of 'etherizing' fruit flies?
A) To kill them for preservation
B) To temporarily anesthetize them for observation
C) To accelerate their development
D) To sterilize them for breeding
  • 7. What type of microscope is typically used to observe fruit flies?
A) Atomic force microscope
B) Compound microscope
C) Stereomicroscope
D) Electron microscope
  • 8. What is the significance of balancer chromosomes in fruit fly genetics?
A) They change the sex of the flies
B) They increase mutation rates
C) They prevent crossing over in specific regions
D) They promote rapid development
  • 9. What does 'P element' refer to in fruit fly genetics?
A) A type of food source
B) A protein involved in eye development
C) A transposable element used for gene manipulation
D) A method of anesthesia
  • 10. What is a 'stock' in the context of fruit fly research?
A) A container for holding flies
B) A measurement of fly size
C) A population of flies with a specific genetic background
D) A type of fruit used for food
  • 11. What is a common method for creating mutant fruit fly lines?
A) Feeding flies different colored food
B) Exposing flies to loud noises
C) Chemical mutagenesis
D) Selective breeding of large flies
  • 12. What is meant by 'crossing' flies?
A) Counting the number of flies in a population
B) Moving flies between different containers
C) Measuring the length of a fly's wings
D) Mating two flies with different genetic backgrounds
  • 13. What is a 'virgin' female fruit fly?
A) A female that lays infertile eggs
B) A female that has not yet mated
C) A female with a specific mutation
D) A female that is unusually large
  • 14. Why is it important to collect virgin females for certain experiments?
A) To control the genetic background of the offspring
B) Because they lay more eggs
C) Because they are more resistant to diseases
D) Because they are easier to handle
  • 15. What is the purpose of a 'vial' in fruit fly experiments?
A) A device for measuring fly speed
B) A tool for anesthetizing flies
C) A type of food supplement
D) A small container to house and breed flies
  • 16. What is the significance of 'eye color' mutants in fruit fly genetics?
A) They develop faster than wild-type flies
B) They are easy to identify and track genetic crosses
C) They are more attracted to light
D) They are more resistant to pesticides
  • 17. What is a 'balancer' chromosome used for?
A) Maintaining heterozygous genotypes
B) Increasing mutation rates
C) Improving fertility
D) Changing the sex ratio
  • 18. What is 'crossing over'?
A) A method of anesthesia
B) A type of fly food
C) A way to measure fly activity
D) Exchange of genetic material during meiosis
  • 19. What is meant by 'F1 generation'?
A) A type of fly food
B) A measurement of fly size
C) The first generation of offspring from a cross
D) A tool for sterilizing flies
  • 20. What is meant by 'F2 generation'?
A) A method to induce sleep in flies
B) A specific type of mutation
C) The second generation of offspring from a cross
D) A technique to analyze fly behavior
  • 21. What does 'wild-type' refer to in fruit fly studies?
A) A fly that can survive in extreme conditions
B) A fly that is resistant to pesticides
C) The normal, non-mutated phenotype
D) A fly with many mutations
  • 22. What is a common application of fruit fly research?
A) Studying human diseases
B) Developing new pesticides
C) Improving bee colony health
D) Creating new types of fruit
  • 23. What is the best temperature range for most fruit fly experiments?
A) 10-15°C
B) 5-10°C
C) 22-25°C
D) 30-35°C
  • 24. What is the recommended humidity for fruit fly cultures?
A) 10-20%
B) 50-60%
C) 0%
D) 80-90%
  • 25. What is 'gene mapping' in fruit fly research?
A) Counting the number of genes in a fly genome
B) Determining the location of genes on chromosomes
C) Modifying fly genes for food production
D) Analyzing fly behavior in different environments
  • 26. What is the purpose of using a 'fly morgue'?
A) To collect dead flies for disposal and analysis
B) To keep flies warm during cold weather
C) To store food for the flies
D) To provide a dark environment for fly sleep
  • 27. What is optogenetics used for in fly research?
A) Measuring the size of fly organs
B) Analyzing the chemical composition of fly food
C) Controlling neuron activity with light
D) Creating different colored flies
  • 28. What is a common method for sterilizing fruit fly vials?
A) Autoclaving
B) Using bleach
C) Microwaving
D) Freezing
  • 29. What is the purpose of adding antifungal agents to fly food?
A) To provide extra nutrients for the flies
B) To make the food more attractive to the flies
C) To prevent mold growth
D) To kill any bacteria in the food
  • 30. What type of anesthetic is most commonly used when anesthetizing flies?
A) Propofol
B) Carbon Dioxide (CO2)
C) Halothane
D) Ether
Created with That Quiz — the math test generation site with resources for other subject areas.