document.write( "Question 1200864: DNA molecules include the base units adenine, thymine, cytosine, and guanine (A, T, C, and G). The sequence of base units along a strand of DNA encodes genetic information. In how many different sequences can A, T, C, and G be arranged along a short strand of DNA that has only 8 base units? \n" ); document.write( "

Algebra.Com's Answer #835075 by ikleyn(52781) $\"\"$ $\"About$

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\n" ); document.write( "DNA molecules include the base units adenine, thymine, cytosine, and guanine (A, T, C, and G).
\n" ); document.write( "The sequence of base units along a strand of DNA encodes genetic information.
\n" ); document.write( "In how many different sequences can A, T, C, and G be arranged along a short strand of DNA that has only 8 base units?
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document.write( "In   = 65536 different ways.    ANSWER\r\n" );
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document.write( "Any of 4 base units can be in the 1-st position.\r\n" );
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document.write( "Any of 4 base units can be in the 2-nd position, independently.\r\n" );
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document.write( "Any of 4 base units can be in the 3-rd position, independently.\r\n" );
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document.write( "   . . . and so on, if there are no other restrictions . . . \r\n" );
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document.write( "It gives the answer above.\r\n" );
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\n" ); document.write( "\n" ); document.write( "Solved.\r
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\n" ); document.write( "\n" ); document.write( "To see many other similar (and different) problems solved, look into the lesson\r
\n" ); document.write( "\n" ); document.write( " - Combinatoric problems for entities other than permutations and combinations \r
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