Gregor Mendel

The Free essays given on our site were donated by anonymous users and should not be viewed as samples of our custom writing service. You are welcome to use them to inspire yourself for writing your own term paper. If you need a custom term paper related to the subject of Biology or Gregor Mendel, you can hire a professional writer here in just a few clicks.
Click Here For Research Papers Online! subject = biology title = Gregor Mendel papers = Gregor Mendel played a huge role in the underlying principles of genetic inheritance. Gregor was born, July 22 1822 in Heinzendorf, Austrian Silesia (now known as Hyncice, Czech Republic), with the name Johann Mendel. He changed his name to Gregor in 1843. He grew up in an Augustinian brotherhood and he learned agricultural training with basic education. He then went on to the Olmutz Philosophical Institute and later entered the Augustinian Monastery in 1843. After 3 years of theological studies, Mendel went to the University of Vienna, where 2 professors influenced him; 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. He returned to Brunn in 1854 where he was a teacher until 1868. Mendel died January 6 1884. In 1857, Mendel began breeding garden peas in the abbey garden to study inheritance, which lead to his law of Segregation and independent assortment. Mendel observed several characteristics of the garden peas which include: plant height (tallness/shortness), seed color (green/yellow), seed shape (smooth/wrinkled), seed-coat color (gray/white), pod shape (full/constricted), pod color (green/yellow), and flower distribution (along length/ at end of stem). Mendel keep careful records of his experiments and first reported his findings at a meeting of the Brunn Natural History Society. The results of Mendel's work were published in 1866 as "Experiments with Plant Hybrids" in the society's journal. Mendel's Law of Segregation stated that the members of a pair of homologous chromosomes segregate during meiosis and is 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. Different alleles will create different variations in inherited characters. The second idea is that for each character, an organism inherits two genes, one for each parent. So that means that a homologous 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 recessive allele will have no affect on the organism's appearance. So an 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 pair of homologous chromosome segregates during meiosis independently of the members of other pairs so that alleles carried on different chromosomes are different distributed randomly to the gametes. Mendel's work was not recognized right away as an important scientific breakthrough. In 1868 Mendel was promoted to abbot at the monastery and gave up his experiments. Aside from his fellow

Our inspirational collection of essays and research papers is available for free to our registered users

Related Essays on Biology

Mitochondria and Chloroplast Essay

Click Here For Research Papers Online! name = Fnord Discordia email = brain.police@whiteface.net publish = yes subject= Biology title = Mitochondria and Chloroplast Essay papers = Biology Mitoc...

read more
Bioethics of Cloning

The Biothics of Cloning Bioethics, which is the study of value judgments pertaining to human conduct in the area of biology and includes those related to the practice of medicine, has been an impo...

read more
Marijuana Outline

What are all the different ups and downs of marijuana, what can it be used for, and what is it's role in today's society? Introduction I. Marijuana A. Getting high 1. Effects 2. How B. He...

read more
the birth of complex cells

Today, all multicellular organism are composed of eukaryotic cells which are larger and more complex than prokaryotes. These eukaryotic cells consist of organelles, such as mitochondria and peroxis...

read more
The modern synthesis genetics

The Modern Synthesis is the theory used to explain and predict all of the traits, variation and changes in living things. It combines the older theories of evolution and Mendelian genetics with more ...

read more
Adaptive radiations in evolution

In the past 300 million years, an innumerable variety of vertebrate species have evolved from the bony fishes of the early Paleozoic. At several points in evolutionary history, there have been period...

read more