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 (C)</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 (C)</p> Signup and view all the answers

What is a common feature of model organisms?

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

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

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

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

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

What percentage of human genetic diseases have counterparts in Drosophila?

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

How many pairs of chromosomes do Drosophila have?

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

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

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

What is a characteristic of Eukaryotes such as green algae?

<p>They contain chlorophyll and undergo photosynthesis (B)</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 (C)</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 (B)</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 (C)</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 (C)</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 (D)</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 (A)</p> Signup and view all the answers

How many pairs of chromosomes does Drosophila melanogaster have?

<p>4 pairs (B)</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 (D)</p> Signup and view all the answers

How many episodes are merged to form the male abdomen?

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

What is the shape of the male abdomen?

<p>Round (B)</p> Signup and view all the answers

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

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

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