Frederick Sanger: A Biographical Sketch
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Questions and Answers

Who was the first person to sequence a protein, leading to advances in protein research?

  • Francis Crick
  • Rosalind Franklin
  • Frederick Sanger (correct)
  • James Watson
  • What was the dideoxy chain-termination method developed by Sanger used for?

  • To prevent DNA replication and isolate fragments for sequencing (correct)
  • To isolate RNA fragments
  • To synthesize insulin
  • To replicate DNA
  • What was a significant accomplishment of Sanger's Sequencing Method?

  • It allowed for RNA sequencing before DNA sequencing.
  • It accelerated protein synthesis in cells.
  • It enabled the mapping of the first human genome. (correct)
  • It facilitated the cloning of entire organisms.
  • What crucial milestone did Sanger achieve by 1982?

    <p>Sequencing 48,502 base pairs of DNA</p> Signup and view all the answers

    What organism did John Sulston focus his research on?

    <p>Caenorhabditis elegans</p> Signup and view all the answers

    In what year did John Sulston push for the genetic sequencing of C. elegans?

    <p>1988</p> Signup and view all the answers

    What was one of Sanger's primary research focuses at the Cambridge Laboratory of Molecular Biology after 1962?

    <p>Understanding the structure of DNA and RNA</p> Signup and view all the answers

    Which prize did John Sulston share in 2002?

    <p>Nobel Prize</p> Signup and view all the answers

    What significant discovery was made regarding DNA in 1953?

    <p>The double-helix structure of DNA</p> Signup and view all the answers

    What significant contribution did the sequencing of C. elegans provide?

    <p>It became the first animal with a fully sequenced genome.</p> Signup and view all the answers

    What was the focus of Frederick Sanger's doctoral research?

    <p>Amino acid metabolism</p> Signup and view all the answers

    In which year did Frederick Sanger first win the Nobel Prize in Chemistry?

    <p>1958</p> Signup and view all the answers

    What technique did Frederick Sanger develop in 1977 that revolutionized molecular biology?

    <p>Dideoxy method of DNA sequencing</p> Signup and view all the answers

    What significant achievement did Sanger complete in 1955 related to insulin?

    <p>Deciphering the entire amino acid sequence of insulin</p> Signup and view all the answers

    What was the main contribution of the Wellcome Sanger Institute, opened in 1993?

    <p>Genome research</p> Signup and view all the answers

    Which of the following areas did Sanger's Quaker beliefs influence regarding his work during World War II?

    <p>Researching nitrogen uptake in potatoes</p> Signup and view all the answers

    What aspect of Sanger's experimental approach is noted for improving biological investigations?

    <p>Micromethods for manipulating tiny volumes of chemicals</p> Signup and view all the answers

    What do the numeric values labeled '370' and '380' in a chromatogram represent?

    <p>Base numbers within the DNA sequence</p> Signup and view all the answers

    Study Notes

    Frederick Sanger: A Biographical Sketch

    • Frederick Sanger was a British biochemist who was awarded two Nobel Prizes in Chemistry.
    • His research focused on sequencing proteins, RNA, and DNA, revolutionizing molecular biology.
    • He was born in 1918 and developed a passion for science early in life.
    • He graduated from Cambridge University with a degree in natural science, specifically biochemistry.
    • Sanger's PhD research involved deciphering the amino acid sequence of insulin.
    • This research led to the development of synthetic insulin, which is crucial for treating diabetes.
    • His work on insulin earned him his first Nobel Prize in Chemistry in 1958.

    Sanger Sequencing

    • In 1977, Sanger developed the "dideoxy method" for sequencing DNA, later known as Sanger Sequencing.
    • This method involves using a chemical that stops DNA replication, creating fragments of different lengths.
    • By analyzing the lengths of these fragments, the sequence of bases in the DNA can be determined.
    • Sanger shared his second Nobel Prize in Chemistry in 1980 with Walter Gilbert and Paul Berg for his work on DNA sequencing.

    The Sanger Institute

    • The Wellcome Sanger Institute in Cambridge, UK, was established in 1993 and is named after Frederick Sanger.
    • This institute is dedicated to genome research and has played a significant role in gene sequencing initiatives, including the Human Genome Project.

    John Sulston

    • John Sulston, an English biologist and the first director of the Wellcome Sanger Institute, shared the 2002 Nobel Prize for his work on programmed cell death.
    • His research focused on the nematode worm Caenorhabditis elegans, which has a fixed number of cells.
    • This made C. elegans an ideal model for studying cell differentiation, division, and programmed cell death.
    • Sulston pushed for the genetic sequencing of C. elegans, which resulted in the first fully sequenced animal genome in 1988.
    • This breakthrough was a crucial contribution to the Human Genome Project (1990-2003).

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    Description

    Explore the life and groundbreaking work of Frederick Sanger, a two-time Nobel Prize-winning biochemist. Learn about his contributions to the sequencing of insulin and DNA, and how his research transformed molecular biology. This quiz delves into the key events and innovations throughout his career.

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