Dictionary » P » Permutation



1. The act of permuting; exchange of the thing for another; mutual transference; interchange. The violent convulsions and permutations that have been made in property. (Burke)

2. (Science: mathematics) The arrangement of any determinate number of things, as units, objects, letters, etc, in all possible orders, one after the other; called also alternation. Cf. Combination. Any one of such possible arrangements.

3. Barter; exchange. Permutation lock, a lock in which the parts can be transposed or shifted, so as to require different arrangements of the tumblers on different occasions of unlocking.

Origin: L. Permutatio: cf. F. Permutation. See Permute.

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Re: Plz help - question on probabilty of a nucleotide sequence

... of that sequence occuring in a row: (.31)(.31)(.19)(.19)(.31)(.31) = 0.0003339 But I think with this formula, the order doesn't matter, rigth? So, permutation of a sequence which has 6 elements with two repetitions (As and Ts): 6!/(2!).(2!)=180 Which means there are 180 permutations of 6 bp sequence ...

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by DRT23
Mon Mar 28, 2011 6:07 pm
Forum: Genetics
Topic: Plz help - question on probabilty of a nucleotide sequence
Replies: 4
Views: 3212

Probability Genetics question

... this way instead of saying 20%. I think the order is important. Because, each subsets of a combination is a different event. Thus, we should use permutation instead of combination. In other words, if someone says 'families that have 2 boys and 2 girls', we consider every familiy with this condition ...

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by DRT23
Sat Feb 26, 2011 8:43 pm
Forum: Genetics
Topic: Probability Genetics question
Replies: 2
Views: 2882

JackBean's Concanavalin A

How do you think they make the jump from protein permutation to genome permutation? Or do you think they remain exclusive?

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by kolean
Mon Apr 12, 2010 1:20 am
Forum: Molecular Biology
Topic: JackBean's Concanavalin A
Replies: 3
Views: 1379

Re: General questions about Haemoglobin molecule

... acid chain. Its chemical formula been : C738 H1166 N812 O203 S2 Fe Using the formula of specificity, calculations show there are 1x10^650 possible permutation possibilities. In a living human, only 20 amino acids can be selected (and only left handed ones) in order for the Haemoglobin to work effectively. ...

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by jojo74
Sun Feb 07, 2010 5:32 pm
Forum: Molecular Biology
Topic: General questions about Haemoglobin molecule
Replies: 6
Views: 13067

The Fiber Disease

... QR algorithm Householder QR decomposition (A P = Q R) R is an upper-trapezoidal matrix, Q is an orthogonal matrix where Q T Q = I and P is a permutation matrix arising out of column exchanges during the construction of Householder vectors. Method retains high numerical accuracy for large ...

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by Nadas Moksha
Tue Nov 21, 2006 2:34 am
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 5478552
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