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Essay Galaxy - DNA: The Thread of Life
DNA: The Thread of Life
The "thread of life", is deoxyribonucleic acid, otherwise known as DNA.
It is the spiral shaped molecule found in the nucleus of cells. Scientists have
known since 1952 that DNA is the basic substance of heredity. This was
hypothesized, and later confirmed by James D. Watson and Francis Crick. They
also know that it acts like a biological computer program over 3 billion bits
long that "spells" out instructions for making the basic building blocks of life.
DNA carries the bodies genetic code, controls the development of an embryo,
is capable of duplicating itself, and is able to repair damage to itself. DNA
can be manipulated to change all kinds of things.
All DNA molecules consist of a linked series of unites called
nucleotides. Each DNA nucleotide is ....
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Number Of Pages: 3 |
Number Of Words: 705 |
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