AACTGGGAAAATTTGAAGAGAAAGTCACACAGATACATTTCAGTAAGGTTGTCTCTGTTACTTGAGGCTTACAAGAAGGA

Question

AACTGGGAAAATTTGAAGAGAAAGTCACACAGATACATTTCAGTAAGGTTGTCTCTGTTACTTGAGGCTTACAAGAAGGAAAGAAGGCCGGGCGCGGTGGCTCACGCCTGTAATCCCAGCACTTTGGGAGGCCGAGGCGGGCGGATCACGAGGTCAGGAGATCGAGACCATCCCGGCTAAAACGCTGAAACCTCGTCTCTACTAAAAATACAAAAAATTAGCCGGGCGTAGTGGCGGGCGCCTGTAGTCCCAGCTACTTGGGAGGCTGAGGCAGGAGAATGGCGTGAACCCGGGAGGCGGAGCTTGCAGTGAGCCGAGATCCTGCCACTGCACTCCAGCGTGGGCGACAGAGCGAGACTCCGTCTCAAAAAAAAAAAAAAAAAAAAAAAAAGAAAGAATTCCCTCTCTAAACACACTCTAACACACAGGAGTTGAGAACTCA

Given the length of the AluI sequence as 334bp, what is the expected frequency of the AluI restriction enzyme sequence?

Explanation / Answer

As per the question if Alu I sequence is 334 bp long

The frequency of Alu I RE sequence will be (1/4)334 = 8.165126e-202

since possibility of occurance of all the four nucleotides at any of the 334 position is 1/4.

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