Basic Examples 
(1)
 

Create a "random" FCGR image using a pseudorandom string of nucleotides:
SeedRandom[12345678];​​charstring=ToString[RandomChoice[{"A","T","C","G"},2000]];​​
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FCGRImage
[charstring,ImageSize200]

Scope 
(4)
 
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Options 
(3)
 
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