Mendel

’s Theories Essay, Research Paper


Gregor Mendel played a huge role in the underlying principles of genetic


inheritance. He grew up in a Augustinian brotherhood where he learned


agricultural training with basic education. He then went on to the Olmutz


Philisophical Institute and then entered the Augustinian Monestary in 1843.


After 3 years of theological studies, Mendel went to the University of Vienna


where he was influenced by 2 professors, the physicist Doppler and a botanist


named Unger. Here he learned to study science through experimentation and


aroused his interest in the causes of variation in plants. Then in 1857, Mendel


began breeding garden peas in the abbey garen to study inheritance which


lead to his law of Segregation and independent assortment.


Mendel’s Law of Segregation stated that the members of a paror of


homologous chromosomes segregate during meiosis and are distributed to


different gametes. This hypothesis can be divided into four main ideas. The


first idea is that alternative versions of genes account for variations in


inherited characters. Diff

erent alleles will create different variations in


inherited characters. The sescond idea is that for each character, an organism


inherits two genes, one form each parent. So this means that a homolohous


loci may have matching alleles, as in the true-breeding plants of Mendel’s P


generation(parental). If the alleles differ, then there will be F hybrids. The


third idea states that if the two alleles differ, the receessive allele will have no


affect on the organism’s appearance. So a F hybrid plant that has purple


flowers, the dominant allele will be the purple-color allele and the recessive


allele would be the white-color allele. The idea is that the two genes for each


character segregate during gamete production.


Independent assortment states that each member of a paor of


homologous chromosome segregates during meiosis independently of the


members of other pairs, so that alleles carried on diffenret chromosomes are


different distributed randomly to the gametes.


In conclusion, Mendel’s work was very inportant to the science


community and to this day are being studied.

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