Laboratory 11 Drosophila Experiment Preparation
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Questions and Answers

Which of the following is NOT one of the four distinct stages in the life cycle of the fruit fly?

  • Larva
  • Egg (embryo)
  • Pupa
  • Cocoon (correct)
  • How many times does the larva molt (shed its cuticle) during its development?

  • Three times
  • Twice (correct)
  • Once
  • Four times
  • What is the term used to refer to the larva during the periods of growth between molts?

  • Adult
  • Instar (correct)
  • Embryo
  • Pupa
  • How many instar stages does the fruit fly have?

    <p>3</p> Signup and view all the answers

    What happens to the cuticle of the third instar larva?

    <p>It hardens and darkens to become the pupa</p> Signup and view all the answers

    How many eggs does each female fruit fly lay per day?

    <p>30-70</p> Signup and view all the answers

    How long does an adult fruit fly typically live?

    <p>Several weeks</p> Signup and view all the answers

    What is the purpose of determining the sex of fruit flies in this experiment?

    <p>To perform a breeding experiment</p> Signup and view all the answers

    Which of the following characteristics helps distinguish male fruit flies from females?

    <p>Males are smaller and have a more rounded abdomen than females</p> Signup and view all the answers

    What should you do if you encounter newly emerged adult flies?

    <p>Do not attempt to sex them</p> Signup and view all the answers

    What characteristic of the flies used in this experiment is mentioned?

    <p>They are 'wild type' flies with normal characteristics</p> Signup and view all the answers

    What is the recommended number of male and female flies to place in the culture vial?

    <p>3 males and 3 females</p> Signup and view all the answers

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