Principles of Genetics: Model Organisms in Genetics Lab
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Questions and Answers

What is the approximate duration of the life cycle of Drosophila melanogaster?

  • Six weeks
  • Four weeks
  • One week
  • Two weeks (correct)

Why is Drosophila melanogaster considered an ideal organism for culturing?

  • It is difficult to house large numbers
  • It is easy to culture and inexpensive to house large numbers (correct)
  • It is very expensive to maintain
  • It has a very long life cycle

What can be observed with the naked eye or under low-power magnification in Drosophila melanogaster?

  • Only its behavior
  • Only its molecular structure
  • Many of its attributes (correct)
  • Only its genetic mutations

What is a characteristic of the life cycle of male and female Drosophila melanogaster?

<p>It is different for both (B)</p> Signup and view all the answers

What is an example of a mutation that can be observed in Drosophila melanogaster?

<p>Vestigial wing (D)</p> Signup and view all the answers

What is a key characteristic of model organisms that enables them to advance our understanding of cellular function and disease?

<p>Their ability to be extensively studied in research laboratories (A)</p> Signup and view all the answers

Which of the following is NOT a condition needed for choosing a model organism?

<p>Ability to undergo metamorphosis (B)</p> Signup and view all the answers

What is a characteristic of Escherichia coli that makes it a popular model organism?

<p>Its rapid reproduction rate (A)</p> Signup and view all the answers

What is a key advantage of using Arabidopsis thaliana as a model organism?

<p>Its ability to be manipulated through genetic engineering (C)</p> Signup and view all the answers

What is a characteristic of Caenorhabditis elegans that makes it a popular model organism?

<p>Its short life cycle and transparency (B)</p> Signup and view all the answers

What is the purpose of choosing a model organism in genetics?

<p>To apply new knowledge to other organisms (D)</p> Signup and view all the answers

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