New information has shown that DNA is so complex that scientists can't figure it out.
And here's a few interesting snippets re: dna, etc. with link:
DEVASTATING MATH PROBABILITIES
The possibilities of it occurring by chance are devastating.
"Based on probability factors . . any viable DNA strand having over 84 nucleotides cannot be the result of haphazard mutations. At that stage, the probabilities are 1 in 4.80 x 1050. Such a number, if written out, would read:
480,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000.
"There is enough storage capacity in the DNA of a single lily seed or a single salamander sperm to store in the Encyclopedia Britannicas."—*R. Dawkins, The Blind Watchmaker, pp. 115-116.
"The irony is devastating. The main purpose of Darwinism was to drive every last trace of an incredible God from biology. But the theory replaces God with an even more incredible deity—omnipotent chance."—*T. Rosazak, Unfinished Animal (1975), pp. 101-102.
http://www.pathlights.com/ce_encyclopedia/08dna04.htm
There are companies now that make DNA, insert it into cell nuclei, and make living bacteria. Your sources are wrong.
Also chemistry is not random. Point out a long chain oxygen molecule for me. If you can.