Sunday, January 30, 2011

Can I Shrink A Sweather

A video about the structure of DNA.

The video is in English. The animated parts are obviously easier to understand and give some elements for the translation of the spoken parts.
In the introduction it is said that once the code of the information contained in DNA was considered to be indecipherable, but today we can say that has been read, page after page (see in a video frame with the sequence of bases AATCCGTCGAAA ... ) (T = 0.58 approx).
become familiar with the structure: two long strands (two long strands) consisting of units (units) formed by the deoxyribose, phosphate group and a base station. The units are nucleotides. The pairing (pairing) bases AT and CG follows the rule, and the sequence on one strand is complementary to the other. (T = 0.60)
The DNA molecule is a polymer, such as RNA.
Paul Nurse then explains how to form the basis of sentences (sentences), for example I sat on the mat (I sat on the mat) is a written message with the usual letters. The bases in the DNA encoding Similarly messages. If I change a letter I get an entirely different I sat on the c at ( I sat on the cat). (T = 3:37 )
What is a gene? Here's Richard Dawkins
say that a gene can be defined in many different ways: it is the unit of heredity, is - chemically - a piece of DNA. Until 1953 we did not know how it worked. We knew the work of Mendel, who showed how inheritance not functioned as a mixture of information (so the example of red and blue that blend to make purple), but with a package information (such as "drops", indivisible units) provides that each parent to offspring. These droplets (beads) are moving from parent to child without blending (mixing) or mixed (bending) (t = 6.36)

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