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Bitmap Image  |  1995-06-29  |  72.5 KB  |  510x394  |  8-bit (186 colors)  |  [TEXT/LMAN]
   ocr: GENES AND DNA HROMOSOMES are made mainly OFDNA (deoxyribonucleic acid). AI DNA molecule isa bit like a very Double helix long rope ladder twisted into a spiral. The < rungs" of the ladder are made up ofpairs ofbases (a base is a type ofchemical substance). The bases are Base pair calledA, T,C,and G.Aalways pairs with T, and Ca always pairs with G. The base pairs join the two strands Strand ofDNA ofthe double helix together. Different DNA controls sections of the ladder, with maybe everything a cell several thousand base pairs, make does, it from lives bow to up each gene. Genes are the units l ...