Pusat Pembelajar Dunia Maya

Jumat, 17 Agustus 2012

Gregor Mendel: The Father of Modern Genetics

Gregor Mendel is usually considered to be the founder of modern genetics. Though farmers had known for centuries that crossbreeding of animals and plants could favor certain desirable traits, Mendel's pea plant experiments conducted between 1856 and 1863 established many of the rules of heredity. An Augustinian monk living in what is now the Czech Republic, Mendel had access to an experimental garden in which he could breed “true” lines of pea plants and patiently wait for them to crossbreed in specified combinations. He worked with seven characteristics of pea plants: plant height, pod shape and color, seed shape and color, and flower position and color. Using the example of seed color, his results showed that when a yellow pea and a green pea were bred together their offspring plant was always yellow. However, in the next generation of plants, the green peas reappeared at a ratio of 1:3.

To explain this phenomenon, Mendel coined the terms “recessive” and “dominant” in reference to certain traits. (In the preceding example, green peas are recessive and yellow peas are dominant.) He published his work in 1866, demonstrating the actions of invisible “factors”—what we now call genes —in providing for visible traits in predictable ways.
Mendel never enjoyed recognition in his lifetime. In fact, it was more than three decades later, in 1900, that three scientists doing agricultural research discovered his 1866 paper. Erich Tschermak, Hugo de Vries, and Carl Correns independently verified several of Mendel's experimental findings, and the age of "genetics was" born. In the next several decades, scientists would learn more about genes and the special substance called DNA that carried each living thing's specific traits.

Sumber : http://history.nih.gov/exhibits/nirenberg/HS1_mendel.htm
Photograph of Gregor Mendel.
Gregor Mendel.

Drawing of a pea plant.
Mendel used pea plants in his experiments.

Lokasi: Jakarta, Indonesia

0 komentar:

Posting Komentar

Popular Posts

Blogger templates



Ir. Arif Cahyadi, S.Mat. S.Pd.Gr., C.SW., C.Mt. C.HTc

@Arif Cahyadi, 2012. Diberdayakan oleh Blogger.

Featured Posts

Multimedia Updates

About Me

Sebuah catatan belajar untuk diri sendiri dan orang lain yang akan memanfa'atkannya

Contact Us


Email *

Pesan *


Search This Blog

Responsive Ads Here

Trending Now


Need our help to upload or customize this blogger template? Contact me with details about the theme customization you need.

Follow Us


Definition List

Definition list
Consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Lorem ipsum dolor sit amet
Consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.


Latest Results



Pages - Menu

Copyright © ARIF CAHYADI Center | Powered by Blogger
Design by Viva Themes | Blogger Theme by NewBloggerThemes.com