Welcome to Biology
113 - Fall Semester - Aug 25 to
Dec 1, 2004
Section
2C - W - 10:10am - 11:00am, Cox
Science Bldg. - Room
166
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Myostatin
Mutations
:
Muscle wasting and weakness are among the most common inherited and
acquired disorders and include the muscular dystrophies, cachexia,
and age-related wasting. Since there is no generally accepted
treatment to improve muscle bulk and strength, these conditions pose
a substantial burden to patients as well as to public health.
Consequently, there has been considerable interest in a recently
described inhibitor of muscle growth, myostatin, or
growth/differentiation factor 8 (GDF-8), which belongs to the
transforming growth factor beta-superfamily of secreted proteins that
control the growth and differentiation of tissues throughout the
body. The myostatin gene is expressed almost exclusively in cells
A Closer
Look at a Myostatin Mutation in a Human Child
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Converging
Technologies for Improving Human Performance
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Beware of Friday the Thirteenth.
Those who know about these things, inform us that
Adam and Eve were expelled from the Garden of Eden on a Friday,
Noah's flood started on a Friday, and
Christ was crucified on a Friday.
Christians also noted that twelve witches plus one devil
are present at Satanic ceremonies,
so Friday and 13 make a deadly combination.
Biology 255 Section Q – Spring 2003
REVIEW
for final will be on - WEDNESDAY
- April 30, 2003
at 3:30pm to 4:30pm
in either SA 126 (lecture hall) or SA 145
Breakdown for the final:
Test 1 was worth 100 points
Test 2 was worth 110 points
Test 3 is worth 80 points (Test 3 and final given
together during final exam period –
Final is worth 110 points Thursday May 1,
2003 at 11:00am to 1:30pm in SA 126
Test 3 & Final will be a total 95 multiple choice questions with following breakdown:
1) new material (Glaser – material since test 2) 80 points or 40 multiple choice
2) cumulative material worth 110 points or 55 multiple choice questions
a) Mallery – cumulative material 24 multiple choice questions
b) Glaser – cumulative material 31 multiple choice questions
Questions per instructor:
Mallery: 24 - multiple choice – cumulative only (no photosynthesis)
Glaser: 40 multiple choice – material since test #2 and
31 multiple choice – cumulative material
posted 4/22/2003 - top.
41)
The lumen of the endoplasmic reticulum at any point in time contains (I)
proteins destined to be secreted and others (II) to be
RETAINED released
in the endoplasmic reticulum. For these two groups (I and II) you expect ?
a) The proteins in Group I to have a signal sequence recognized by SRP, but
not those in Group II
b) Both proteins to have a signal sequence recognized by SRP
c) The proteins in Group II but not Group I to have a
sequence that bonds to a receptor specifying retention in the
endoplasmic reticulum.
d) a and c apply e) b and
c apply
FORM 1
40)
The lumen of the endoplasmic reticulum at any point in time contains (I)
proteins destined to be secreted and others (II) to be
RETAINED released
in the endoplasmic reticulum. For these two groups (I and II) you expect ?
a) The proteins in Group I to have a signal sequence recognized by SRP, but
not those in Group II
b) Both proteins to have a signal sequence recognized by SRP
c) The proteins in Group II but not Group I to have a
sequence that bonds to a receptor specifying retention in the
endoplasmic reticulum.
d) a and c apply e) b and
c apply