Gregor Mendel - 17-107

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GREGOR MENDEL
Aya El-Husseini
BACKGROUND
 Gregor Johann Mendel was born in Hyncice, Moravia
on 22 July1822 . The only son of a peasant farmer,
Mendel attended local schools and the Philosophic
Institute
at
Olomouc.
In
1843,
he
entered
the
Augustinian Order at St. Thomas Monastery in Brünn and
began his studies at the Brünn Theological College.
 Mendel died in Brünn on 6 January 1884.
DISCOVERIES
Gregor Mendel was a monk in Austria who raised peas in
the monastery gardens. While breeding his peas, he
made some big discoveries. They were discoveries about
genetics.
The peas had several traits he could see. Some plants
were tall and some were short. Some had wrinkled pods
and some had smooth pods. Some pods were green
and some where yellow. The flowers were white or
purple.
Gregor Mendel looked at each trait and learned how
they were passed down to the offspring plants. Since
plants breed using pollen, Mendel controlled which
plants pollinated other plants. This was how he
discovered many important genetic rules.
First he learned that some traits showed up more often
and he called them dominant traits. The traits that
showed up less often he called recessive traits. He
discovered that if tall plants and short plants bred, they
made a mixed or hybrid offspring plant.
Hybrid plants are different from dominant plants even if they
looked the same. Each gene has two chances at a trait two copies or alleles. So, for example, a hybrid plant might
be tall like its dominant parent, but it still could have an
allele for shortness that you don't see.
When two tall hybrid plants breed, one in four of the
offspring are short. Gregor Mendel saw this and it is still
taught in basic genetics classes today.
EXPLANATION
By observing how the parents traits effect the
child, Gregor Mendel discovered the laws of
genetics.
BENEFIT TO SOCIETY
Gregor Mendel's great contribution was in the
concept of genetic inheritance. Knowing that
traits are hereditary has helped farmers, and every
type of animal breeder. If farmers want to grow a
tall plant, they know which plants to breed.
BIBLIOGRAPHY (MLA)
I used two sites for my information and pictures:
"Villanova University - Gregor Mendel." Villanova
University Astronomy & Astrophysics. Web. 22 Sept.
2011. http://astro4.ast.vill.edu/mendel/gregor.htm.
"Exploring Nature Educational Resource." Exploring Nature
Educational Resource: A Natural Science Resource for
Students and Educators. Web. 21 Sept. 2011.
http://www.exploringnature.org/db/detail.php?dbID=22
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