Importance of Model Organisms in Biology
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Questions and Answers

What is the primary purpose of using model organisms in biological studies?

  • To develop new medicines and treatments
  • To understand biological phenomena and study human diseases (correct)
  • To study the structure of DNA
  • To test the effects of environmental pollutants

    • What is a characteristic of model organisms that allows for better results in statistical analysis?

  • Difficulty in growing in a laboratory setting
  • Long life cycle
  • Large size and ease of handling
  • Enlarge offspring (correct)

    • Which of the following is an advantage of using Tobacco Mosaic Virus (TMV) as a model organism?

  • Complexity in structure and function
  • Quick reproduction and ease of studying DNA (correct)
  • Easy growth and life cycle of 20 minutes
  • Difficulty in obtaining and handling

    • What is a disadvantage of using Tobacco Mosaic Virus (TMV) as a model organism?

    <p>Mandatory snooping and specialist influenced by temperature</p> Signup and view all the answers

    What is a characteristic of Escherichia coli (E. coli) that makes it a useful model organism?

    <p>It has a fast growth rate and 20-minute life cycle</p> Signup and view all the answers

    What is a common feature of model organisms?

    <p>Short life cycle and small size</p> Signup and view all the answers

    What was the significance of Thomas Morgan's discovery in 1907?

    <p>Linking chromosomes to genetic characteristics</p> Signup and view all the answers

    What is the ideal temperature and humidity for Drosophila's life cycle?

    <p>25°C, 60% humidity</p> Signup and view all the answers

    How many days does Drosophila's life cycle take at a temperature of 20°C?

    <p>14 days</p> Signup and view all the answers

    What percentage of human genetic diseases have counterparts in Drosophila?

    <p>75%</p> Signup and view all the answers

    How many pairs of chromosomes do Drosophila have?

    <p>4 pairs</p> Signup and view all the answers

    What is the average number of eggs laid by a female Drosophila per day?

    <p>50 eggs</p> Signup and view all the answers

    What is a characteristic of Eukaryotes such as green algae?

    <p>They contain chlorophyll and undergo photosynthesis</p> Signup and view all the answers

    What is a disadvantage of using Saccharomyces cerevisiae (Yeast) in research?

    <p>Their cells explode at high temperatures</p> Signup and view all the answers

    What is an advantage of using Arabidopsis thaliana (Brassica) in research?

    <p>They are small in size and have a small genome</p> Signup and view all the answers

    What is a characteristic of Caenorhabditis elegans (Nematode) worms?

    <p>They are 1 mm in length and have 5 pairs of chromosomes</p> Signup and view all the answers

    What is a disadvantage of using installation in genome research?

    <p>It is quick and easy, but can cause harm to humans</p> Signup and view all the answers

    What is an advantage of using Caenorhabditis elegans (Nematode) worms in research?

    <p>They are used in the study of molecular and developmental biology</p> Signup and view all the answers

    What is a distinctive feature of the female Drosophila melanogaster?

    <p>Six broad black lines on the upper surface of the abdomen</p> Signup and view all the answers

    How many pairs of chromosomes does Drosophila melanogaster have?

    <p>4 pairs</p> Signup and view all the answers

    What is the temperature required for the life cycle of Drosophila melanogaster to complete in 10 days?

    <p>25°C</p> Signup and view all the answers

    How many episodes are merged to form the male abdomen?

    <p>4 episodes</p> Signup and view all the answers

    What is the shape of the male abdomen?

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

    What is the humidity required for the life cycle of Drosophila melanogaster?

    <p>60%</p> Signup and view all the answers

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