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Biology 1002B Study Guide - Midterm Guide: Northern Blot, Atp-Binding Cassette Transporter, Agarose Gel Electrophoresis

Course Code
BIOL 1002B
Tom Haffie
Study Guide

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B I O L O G Y 1002B
February 10, 2013 Time: 2 Hours
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Bio 1002B
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If you mean Denis has a dog named Watson, then my answer changes

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Biology 1002B February Term Test 2013 Page
Code 111 Code 111 Code 111
Circle the best single letter choice for each of the following questions before transferring
your answers to your computer sheet. Note: Questions may have 4 or 5 choices.
1. In comparing the eyespot in Chlamydomonas and the eye in humans, which of the
following statements is correct?
A. The two organs are homologous.
B. The eyespot is an ancient organ, while the eye evolved more recently.
C. The eyespot does not contain chlorophyll but can influence photosynthesis.
D. Photochemical reactions only take place in the eye.
2. Lecture 1 featured a video clip that showed normal phototaxis in wild-type
Chlamydomonas cells and the lack of phototaxis in a strain of mutant cells.
Which of the following hypotheses is supported by the responses of the two strains to a
directional light source?
1. Photosynthesis in the mutant is more sensitive to high light.
2. The mutant may not be able to transport ATP to the flagella.
3. The eyespot must be defective in the mutant strain.
4. The mutant may have higher expression of enzymes that detoxify toxic oxygen
(e.g. oxygen radicals, reactive oxygen species...)
A. 1,2 and 3
B. 1 and 3
C. 2 and 4
D. 4 only
E. All of 1,2,3 and 4 are correct
3. The figure at the right shows the structure of a rod cell that is found in the
retina of the mammalian eye.
Which of the following statements correctly explains the structure/function
of a rod cell?
A. The rod is a specialized cell in which no protein synthesis
takes place.
B. The arrow points to the plasma membrane. During phototransduction
the inside of the cell becomes positively charged compared to
the outside.
C. The bracket identifies 13 photoreceptor disks each containing one
photoreceptor molecule.
D. In the dark, this cell “communicates with” the next cell through the
release of glutamate.
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