The needleman-wunsch method for aligning dna sequences assigns 1 point whenever a mismatch occurs, and 3 points whenever a gap (insertion or deletion) appears in a sequence. assume that under certain conditions, the number of mismatches has mean 7 and standard deviation 4, and the number of gaps has mean 2 and standard deviation 1. find the mean and of the needlemen-wunch score.

The mean and of the Needlemen-Wunch score is 13

Step-by-step explanation:

Consider the provided information.

Let X is the 1 point whenever a mismatch occurs and Y is the 3 points whenever a gap appears in a sequence.

Assume that under certain conditions, the number of mismatches has mean 7 and standard deviation 4,

The number of gaps has mean 2 and standard deviation 1.

Now use the formula :

Substitute the respective values as shown:

Hence, the mean and of the Needlemen-Wunch score is 13

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