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The best way to distinguish between two individuals based on DNA is to_____?

rkoch

wrote...

Posts: 103

Rep:

11 years ago

The best way to distinguish between two individuals based on DNA is to_____?

Answers are

a.determine their karyotypes

b.perform PCR on a rare gene

c.analyze their short tandem repeats (STRs)

d.determine their hemoglobin gene sequence

e.examine their nucleosome structure

Biology help!

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LESHA

wrote...

#1

11 years ago

The answer is "C". A variation in the DNA sequence of a genome that can be detected by breaking the DNA into pieces with restriction enzymes and analyzing the size of the resulting fragments by gel electrophoresis.
Differences in fragment length result from base substitutions, additions, deletions or sequence rearrangements within RE recognition sequences.
Although two individuals of the same species have almost identical genomes, they will always differ at a few nucleotides?due to spontaneous mutations

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