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DNA Fingerprinting

The fingerprints are a bar-code like occurrence which can distinguish the uniqueness of one individual from another. This can be used to determine the presence of someone at a particular time by matching their fingerprints at the scene.


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how many dna molecules in a cell? are they all the same?

... And one more question. :) (I promise it is also the last one) Since DNA molecules in a human cell are different, how do forensics do DNA fingerprinting test? I mean, if they find one DNA molecule, which is from the murder's chromosome-1, ...

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by julianawhite
Tue Oct 30, 2012 2:05 pm
 
Forum: Cell Biology
Topic: how many dna molecules in a cell? are they all the same?
Replies: 5
Views: 3536

how many dna molecules in a cell? are they all the same?

... has been dogging me for days. could anyone please answer it? how many dna molecules are there in a human cell? are they all the same? if they are ... have different number of genes? if they are not, how does dna fingerprinting make sure two different dna, which are from different chromosomes, ...

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by julianawhite
Mon Oct 29, 2012 3:34 pm
 
Forum: Cell Biology
Topic: how many dna molecules in a cell? are they all the same?
Replies: 5
Views: 3536

DNA question help

i am doing DNA fingerprinting assignment and i got stuck on this question if a restriction is "denatured", and therefore ...

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by ekfsksk
Sun Apr 01, 2012 10:04 pm
 
Forum: Molecular Biology
Topic: DNA question help
Replies: 3
Views: 1150

restriction enzymes in dna fingerprinting

In DNA comparisons between two people, which genes or sequences are chosen to compare? You can't compare all the chromosomes, because there are 3 billion base pairs. So which restriction enzymes are used, which sections of ...

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by mattw
Fri Nov 19, 2010 3:59 pm
 
Forum: Genetics
Topic: restriction enzymes in dna fingerprinting
Replies: 1
Views: 1878

questions about DNA fingerprinting

In DNA fingerprinting, when u amplify the STRs by PCR, how how do you control the elongation of the primer so that the ...

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by tracyliu
Thu Oct 21, 2010 11:09 am
 
Forum: Genetics
Topic: questions about DNA fingerprinting
Replies: 1
Views: 1719
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