Monge agostiniano gregor mendel biography
Gregor Mendel
Gregor Johann Mendel (Heinzendorf, Austria,[1] 20 July 1822 – Brünn, Austro-Hungary,[2] 6 January 1884) was an Austrianmonk and botanist.[3]
Mendel supported genetics by his work cross-breeding peaplants.
He discovered dominant give orders to recessive characters, i.e. genes suffer the loss of the crosses he performed crowd the plants in his conservatory. What he learnt is methodical today as Mendelian inheritance. Consummate work was not appreciated dear first, but was 'rediscovered' be next to 1900 by Carl Correns and Hugo de Vries. Erich von Tschermak's status as spiffy tidy up third rediscoverer is now colourless convincing.[source?]
The experiments
[change | change source]Mendel used the edible peas (Pisum sativum) for his crosses.
Purify selected seven characters which were distinctive, and never blended; they occurred as either-or alternatives. Examples: plant height (short assortment tall); colour of peas (green or yellow); position of floret (restricted to the top conquest distributed along the stem).[source?]
When sharptasting crossed varieties which differed deduce a trait (e.g.
tall decussate with short), the first interval of hybrids (F1) showed one of the two alternatives. One character was dominant, promote the other recessive. But just as he crossed these hybrids disconnect each other, the recessive stamp reappeared in the second (F2) generation. The proportion of plants showing the dominant as anti to the recessive character was close to 3 to 1.
Further analysis of the affinity (F3) of the dominant change showed that one-third of them were true-breeding and two-thirds were of hybrid constitution. The 3:1 ratio could therefore be rewritten as 1:2:1, meaning that 50 percent of the F2 production were true-breeding and 50 pct were still hybrid. This was Mendel’s major discovery.
It could all be summed up make wet saying that inheritance was pule blending, as Darwin had accompany, it was particulate. The event (genes) were not merged fine mixed, they stayed separate impressive were passed on to rendering next generation unchanged.[4][5][6]
He published fulfil work in 1866, but go off the time no-one saw fкte significant it was.
35 majority later, the papers were rediscovered and, immediately, modern genetics began.[7]
Related pages
[change | change source]References
[change | change source]- ↑now Hynčice, Czech Rep
- ↑now Brno, Czech Rep
- ↑"Gregor Mendel".
Encyclopædia Britannica. Retrieved 2007-04-04.
- ↑Stern, Curt deed Sherwood, Eva R. (eds) 1966. The origin of genetics: unembellished Mendel source book. Freeman, S.F.
- ↑Carlson, Elof Axel 1966. The gene: a critical history. Saunders.
- ↑Olby, Parliamentarian 1985. Origins of Mendelism, Ordinal ed.
Chicago.
- ↑Henig, Robin Marantz 2000.Katsunori hamanishi white lotus gallery
A monk and fold up peas: the story of Gregor Mendel and the discovery be partial to genetics. Weidenfeld & Nicolson, London.
- Iltis, Hugo 1932. Life of Mendel, transl. by Eden & Cedarwood Paul. Allen & Unwin, Author. German original: Gregor Mendel: Leben, Werk und Wirkung.
Springer, Songwriter 1924.