Surname 1
Name
Course
Instructor
Date
Biology
Barbara McClintock
McClintock was a research scientist who studied how chromosomes in maize changed
and how they underwent transformation during their reproduction stages (Spangenburg & Moser
35-41). Through her laboratory research, she was able to develop a groundbreaking method of
observing maize chromosomes as they developed. Spangenburg & Moser write that she used
microscopic inquiry to explain different genetic developments (35-41). By narrating the process
of genetic recombination during meiosis, she developed a maize genetic map. Finally, she
elaborated on the role of centromere and telomere the central part of genetic transformation in
maize (Spangenburg & Moser 38). Using the developed theories, she was able to explain the
control and genetic development of a given maize generation to another generation. Finally, she
conducted a study of ethnobotany and cytogenetic of maize race in different settings
(Spangenburg & Moser 96). This study was important because McClintock was a pioneer in
cytogenetic use maize as her study specimen.
Walter Sutton
Sutton was not interested in medical biology. However, he described the connection
between chromosome and inheritance (Crow & Crow 1-4). He discovered the importance of
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chromosomes in the testicles of a grasshopper. These chromosomes were said to be inherited
genes (Crow & and Crow 4). This discovery formed a basis of modern microbiology today.
Hermann J. Muller
Muller was a geneticist who examined the genetical and physiological impacts of
radiation (Foster 72). This study was important because it created public awareness of the
impacts of nuclear radiations. He published several articles on scientific knowledge among the
learned communities.
Carl Correns
Finally, Correns was German geneticist and botanist, who discovered the principles of
hereditary in biology. He further rediscovered Mendel’s finding on hereditary, and he greatly
disregarded Mendel’s discovery (Watson 23). In his findings, he restated Mendel’s findings and
used his principle of independence and segregation to describe the law of inheritance (Watson
Part 3).
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Works Cited
Crow, Ernest & Crow James. “100 years ago: Walter Sutton and the chromosome theory of
heredity.” Genetics 160.1 (2002): 1–4.Print.
Foster, John. The Ecological Revolution: Making Peace with the Planet. New York: Monthly
Review Press, 2009. Print.
Spangenburg, Ray & Moser, Diane. Barbara McClintock: Pioneering Geneticist. NY: Infobase
Publishing, 2008. Print.
Watson, Peter. The German Genius: Europe's Third Renaissance, the Second Scientific
Revolution, and the Twentieth Century. London: Simon and Schuster, 2009. Print.