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Who first studied genetics?

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Who first studied genetics? Gregor Mendel (1822-1884) was a botanist and monk who lived in what is now called the Czech Republic. He was interested in finding out how changes took place in an organism as it reproduced.

He studied the garden pea plant, breeding plants with different colored flowers, different shapes of seed pod, and other characteristics. Recording the effects, Mendel formulated simple rules that allowed him to predict how many plants would resemble one or both parents, and how many would combine characteristics of each parent.

Mendel's studies formed the basis of modern genetics. Although he altered some findings to fit with his ideas, his theories are still important to the study of biology.

During Earth's long history, many millions of species have appeared, thrived for a time and then d ied out. Dinosaurs are the example that most people would think of, but there were many other creatures just as spectacular, such as colossal sea-lizards and giant sharks far bigger than any similar predators living today.

But of all these extinct animals, the dinosaurs were the most successful, living for 150 million years and colonizing almost every part of the land surface.They were so successful that the biggest mystery about them is why they disappeared at all.

Dinosaurs ranged from small chicken-sized creatures that scuttled about in the ferns and mosses, up to the gigantic plant eaters and predators that we see reconstructed in films. Because generally only their bones survive, there is much that we do not know about dinosaurs and their habits.

There is also a lot that can be deduced from their remains, which show us that they often laid eggs in carefully constructed nests, lived in herds and carriec out long migrations. What we don't know is what colors they were, if they had a 'voice' or even if they were warm-blooded like modern mammals and birds.
After the extinction of the dinosaurs, the small shrew-like mammals that took over also went through a period of evolutionary growth.

This produced monstrous grazing animals, and sloths so big that they could push trees over in order to feed on them. Mammoths, woolly rhinoceroses and sabre-toothed cats appeared and later became extinct, but by this time, humans had emerged from their ape-like ancestors and contributed to the extinction of the animals they killed for food.


Tags: botanist, genetics



Category: Education  - ( Education Archive)

Date Added: 15 December '11


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