domingo, 6 de mayo de 2012

"DNA works in mysterious ways."



Humans have been on earth for million of years, and still we don’t even know half of the animals and plants we share our planet with; yet, we think we do. It is nearly impossible to know every single species, as (as Dawkins says) there are around three million different types of insects alone. And still we continue to believe we know everything, and we have the power over the world. But we don’t, and Dawkins proves this by saying that every species depends on the others; like trees depend on monkeys and water depends on fish.

Dawkins also explains how chromosomes work. In the past, teachers have tried explaining this to me and I’ve barely understood a thing. However, Dawkins, with an allegory, was able to make me understand easily for the first time. He compares the human body to a building, each cell to a room, the nucleus to bookcases, chromosomes to 46 volumes of books, and genes to pages. He then proceeds to explain by using this allegory and once the reader understands, he simply uses the real terms. Surprisingly, with no need for questions, everything was clear for once and for all.

“Acquired characteristics are no inherited,” says Dawkins (Page 23), and I completely agree. People sometimes think a boy is good at soccer because he inherited it from his father, or that another is good at math because he inherited it from his mother. But I disagree. Things like math and soccer, although they have been present for a long time, were initially created by man, so genes cannot carry information for these. However, by living in an environment were these are practiced and by one practicing these as well, one can develop the skills necessary. This is the inherited vs. acquired debate comes in, but I believe skills are acquired; so it doesn’t depend only depend on who your parents are, but where you live.

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