Antibody Comparison: Monoclonal vs Polyclonal

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Questions and Answers

What is a major advantage of monoclonal antibodies over polyclonal antibodies?

  • They can be obtained from a variety of animals
  • They require minimal purification
  • They are more effective against large antigens
  • They can be produced in a lifelong culture (correct)

Why are polyclonal antibodies often used against large antigens such as bacteria?

  • Because they can recognize multiple epitopes (correct)
  • Because they are cheaper to produce
  • Because they are easier to purify
  • Because they are more specific to the antigen

What is a limitation of polyclonal antibodies?

  • They are more expensive to produce
  • They require a lifelong culture
  • They are only produced in mice
  • They have a finite source due to the limited lifespan of the animal (correct)

Why are monoclonal antibodies often used in immunoassays?

<p>Because they provide a constant antibody source (B)</p> Signup and view all the answers

What is a difference between monoclonal and polyclonal antibodies in terms of purification?

<p>Polyclonal antibodies require more purification (D)</p> Signup and view all the answers

Which of the following is a limitation of polyclonal antibodies?

<p>The source of antibodies is finite (D)</p> Signup and view all the answers

Why are monoclonal antibodies restricted to mice?

<p>Because the cell culture technology is well established for mice (A)</p> Signup and view all the answers

What is a characteristic of monoclonal antibodies in terms of their production?

<p>They can be produced quickly and at a low cost (C)</p> Signup and view all the answers

What is a reason why polyclonal antibodies are often used against large antigens?

<p>Because they can recognize multiple epitopes on the antigen (B)</p> Signup and view all the answers

What is an advantage of using monoclonal antibodies in terms of their source?

<p>They have a constant source of antibodies (C)</p> Signup and view all the answers

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Study Notes

Monoclonal Antibodies

  • Restricted to mouse as source
  • Can be developed and grown in cell culture, making it a quick and cost-effective method
  • Offers a lifelong culture, ensuring a constant source of antibodies
  • Requires minimal purification, as the antibodies are identical and uniform
  • Most commonly used in immunoassays due to their high specificity and sensitivity

Polyclonal Antibodies

  • Can be derived from multiple animal sources, as long as the animal is large enough
  • Requires animal housing, which is subject to strict regulations
  • Has a finite source, as the animal will eventually die of old age, and the antibody source changes each time a new animal is used
  • Requires purification of antibodies from all other cell components, which can be a complex and time-consuming process
  • Best suited for large antigens, such as bacteria, whose epitopes may change, and requires a mixture of antibodies to recognize different epitopes

Monoclonal Antibodies

  • Restricted to mouse as source
  • Can be developed and grown in cell culture, making it a quick and cost-effective method
  • Offers a lifelong culture, ensuring a constant source of antibodies
  • Requires minimal purification, as the antibodies are identical and uniform
  • Most commonly used in immunoassays due to their high specificity and sensitivity

Polyclonal Antibodies

  • Can be derived from multiple animal sources, as long as the animal is large enough
  • Requires animal housing, which is subject to strict regulations
  • Has a finite source, as the animal will eventually die of old age, and the antibody source changes each time a new animal is used
  • Requires purification of antibodies from all other cell components, which can be a complex and time-consuming process
  • Best suited for large antigens, such as bacteria, whose epitopes may change, and requires a mixture of antibodies to recognize different epitopes

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