document.write( "Question 880410: Your DNA code is composed of a series of four nucleotides: adenine, guanine, thymidine and cytosine (A, G, T and C, respectively). \r
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\n" ); document.write( "\n" ); document.write( "b) What is the probability that an individual has k T’s in their DNA code at any particular position? (Note: k can be any integer and you may assume independence).
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Algebra.Com's Answer #531594 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "I cannot understand why T A T A T A has 6 members.  Is there always\r\n" );
document.write( "6 members taken from the 4 members {A,G,T,C}?  Why 4 letters to choose\r\n" );
document.write( "from and 6 to choose?\r\n" );
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document.write( "If so, we want this   \r\n" );
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document.write( "And since \"AND\" tells us to multiply probabilities:\r\n" );
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document.write( "\"1%2F4\"\"%22%D7%22\"\"1%2F4\"\"%22%D7%22\"\"1%2F4\"\"%22%D7%22\"\"1%2F4\"\"%22%D7%22\"\"1%2F4\"\"%22%D7%22\"\"1%2F4\" \"%22%22=%22%22\" \"%281%2F4%29%5E6\" \"%22%22=%22%22\" \"1%2F4096\"\r\n" );
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document.write( "I am not sure what you mean by the second part?  Are there always 6 letters,\r\n" );
document.write( "as in T A T A T A?  Or are there sometimes only four, like T A T A, and\r\n" );
document.write( "sometimes 7 or 8 like T A T A T A T, or T A T A T A T A, and sometimes even\r\n" );
document.write( "only 2 like T A??  \r\n" );
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document.write( "If you will explain whether there are always 6 letters, as in  in T A T A T A\r\n" );
document.write( "or if there can be other numbers of them besides 6 in the thank-you note, I'll\r\n" );
document.write( "get back to= you and help you with the 2nd part. (free of charge, of course.)\r\n" );
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document.write( "Edwin
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