Biology
Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 14.4, Problem 1TC

For any single person, a given STR always has either one or two bands. Why? Further, single bands are always about twice as bright as each band of a pair. For example, in the D16 STR on the right, the single bands of the first and third DNA samples are twice as bright as the pairs of bands of the second, fourth, and fifth samples. Why?

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Whether done manually or automated, DNA sequencing gels are always made of polyacrylamide rather than agarose. Why can't agarose be used for a sequencing gel, as it is for other DNA gel electrophoresis?
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