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<title>questions 1.30-01, </title>
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<p><font COLOR="#CF411D">
In question 2-7 B ii) in the problem sets, why does each subunit have
1/4 size?</font> &nbsp;One experiment shows there are 2 kinds of subunits
that differ in migration on a native gel. The difference could be in shape,
mass or charge.The second says that both types of subunits have the same
mol. wt. (So they must be different in charge or shape to migrate differently
as in (1)). &nbsp;The third experiment says there are 4 free ends or 4 subunits
(chains) per molecule. Since all types of subunits have the same mol. wt,
that must be = 1/4 of the total.
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