Eng. 2000 Evolution Sum.

Eng. 2000 Evolution Sum. - averages of its parents. For...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Michael Miller English 2000 The Development of Evolutionary Theory One of the first accepted theories of evolution was proposed by Jean Baptiste Lamark. He suggested the concept of “orthogenesis”, which implied that individual organisms evolve within their own lifetime. We now know that his theory is false, and that populations as a whole, rather than individual organisms, evolve over time. We are now aware of this fact thanks to Charles Darwin. Darwin proposed the theory of natural selection which in short exemplifies the thought of “survival of the fittest”. This theory is widely accepted by scientists around the globe. Darwin also had another theory alongside natural selection called “blended inheritance”. This theory focused on the thought that all offspring were
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: averages of its parents. For example, if two human parents, one short and one tall, produced offspring the child would be of medium height. This theory of Charles Darwins was accepted until a scientist by the name of Gregor Mendel came along in the mid 1800s. Mendel proposed that genes from a mother and father do not blend when passed onto offspring. This theory of modern evolution was soon accepted after Mendel tested his theory by breeding pea plants. Through his experiments, Mendel concluded that genes do not blend, but in fact remain distinct and can be passed onto later generations. Mendels theory of non-blending inheritance and Darwins theory of natural selection are the two most modern and widely accepted evolutionary theories of our time....
View Full Document

This note was uploaded on 10/12/2010 for the course BIOL 1208 taught by Professor Crowe during the Spring '10 term at Louisiana College.

Ask a homework question - tutors are online