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Gregor Mendel
Karl-Lutz De Regules
Jessica Gonzalez
Jose Salas
Alex Villamar
“The Father of Genetics”
Table of Contents
Timeline
Organizations
Main Theory
Pea Plant Experiment
Mendel’s Three Laws
Definitions
Consequential Effects
Other Interests
References
Timeline
1822 born July 20 in Heizendorf,
Austria
1833 is enrolled in Piarist secondary
school in Leipnik, Heinzendof
1838 at the age of sixteen begins to
support himself
Timeline
1839 becomes ill and is absent from
school for months
1840 enrolls in the University of
Olmutz and studies philosophy
1843 joins the Augustinian
monastery and changes his name
from Johann to Gregor
Timeline
1851 Enrolls in the University of Vienna
1856 Begins experiments with genes
(Pea Plant Experiment)
1884 died January 6, in Brno, Austria
Organizations
Member of the
Zoologistbotanisher
Vernin
Austrian Monk
Pea Plant Experiment
Why Mendel Chose the Pea Plant:
Inbred, true-breeding lines were available.
Hybrid pea plants were known; segregation of traits
could be quantitated.
Easily observable traits were available such as
flower color, seed color, seed shape, pod color,
pod shape, flower position, and plant height.
Plants were small; easy to grow in large numbers;
short generation time for several crosses per
growing season.
Peas are normally self-fertilizing, but artificial cross
fertilizations are readily done.
Pea Plant Experiment
Mendel's peas typically had 2 seed shapes:
round and wrinkled.
Mendel produced this experiment by breeding
different types of peas together to see which
traits were passed to the offspring.
Breeding and tracing traits is known as
hybridization.
Pea Plant Experiment
Mendel made crosses
between true-breeding,
self-fertilizing plants;
He followed the
inheritance of
distinctive traits in the
offspring and kept
quantitative records
Main Theory
Mendel had a theory
that was comprised
of three basic laws;
these laws
pertained to traits,
characteristics, and
heredity.
Mendel’s First Law
“Sex cells of a
plant may contain
two different
traits, but not
both of those
traits.”
Mendel’s Second Law
Characteristics
are inherited
independently from
another (the basis for
recessive and
dominant gene
composition).
Mendel’s Third Law
Each inherited
characteristic is
determined by two
hereditary factors
(known more recently
as genes), one from
each parent, which
decides whether a
gene is dominant or
recessive.
Definitions
Gene: is located in the germ plasm usually on a
chromosome.
Dominant: being the one of a pair of bodily
structures that is the more effective or
predominant in action
Recessive: producing little or no phenotypic
effect when occurring in heterozygous condition
with a contrasting allele
Consequential Effects
Opened doors for
research on:
Down Syndrome
Klinefelter Syndrome
Turners Syndrome
Other Interests
Meteorology
Theories of Evolution
Philosophy
Ecclesiastical history
Ecclesiastical archeology
Greek
Hebrew
References
Blumberg, Robert. Mendel Web. 24 Oct. 2002.
http://mendelweb.org
Henig, Robin. The Monk in the Garden: The Lost
and Found Genius of Gregor Mendel, the father of
genetics.
Webb, Robert. Gregor Mendel and Heredity.
http://www.carolina.com/achievements/janapr/me
ndel.asp