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ou mais tarde. Leia como Depurar o WordPress para mais informações. (Esta mensagem foi adicionada na versão 6.7.0.) in /home/lopestec/public_html/wp-includes/functions.php on line 6114Dutch spectacle companies started to built simple microscopes regarding the late 1500s, providing Robert Hooke (1653\u20131703) to check out muscle when you look at the 1665. Microscopes provided naturalists having the brand new and you may fascinating vistas to your life, and maybe it was too much love for this “” new world “” regarding the brief you to gave rise to the thought of preformationism.<\/p>\n
Fig: Preformationism are a greatest thought of heredity on the seventeenth and you can 18th centuries. Found here’s an attracting regarding a homunculus into the a semen<\/p>\n
Preformationism required that most faculties could well be handed down out-of only one father or mother -regarding dad in case your homunculus was at the spunk otherwise throughout the mommy if this was a student in this new egg.<\/p>\n
While most findings ideal you to girls and boys enjoys a combination of traits out-of both parents, preformationism remained a famous build through the a lot of brand new seventeenth and you may eighteenth centuries<\/p>\n
Some other early thought of heredity is actually merging heredity, hence recommended you to youngsters is a combination, otherwise combination of parental characteristics.<\/p>\n
\u201cThis notion recommended the genetic question alone blends, very much like bluish and you can red-colored pigments combine and come up with eco-friendly paint. Shortly after combined, hereditary distinctions cannot end up being split call at future generations, exactly as environmentally friendly decorate cannot be broke up out on bluish and you will purple pigments. Certain characteristics create apparently display blending heredity; although not, we understand now see your face genes do not merge.\u201d<\/p>\n
Charles Darwin (1809 \u2013 1882), probably one of the most influential biologists of your own 19th 100 years, put forth the idea out-of progression thanks to sheer selection and penned their suggestions inside the Toward Supply from Variety in 1856. Darwin recognized you to definitely heredity was important so you’re able to advancement, and he presented comprehensive genetic crosses with pigeons or any other bacteria. not, the guy never ever knew the sort from genetics, which diminished facts is a primary omission within his idea out-of advancement.<\/p>\n
Wolff (1738-1794), proposed it concept considering epigenesis eggs or sperm cell perform not consist of mininature individual alternatively they lead during the innovation. It is universally accept.<\/p>\n