Biological Science (7th Edition)
7th Edition
ISBN: 9780134678320
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Greg Podgorski, Emily Taylor, Jeff Carmichael
Publisher: PEARSON
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Chapter 7, Problem 2TYK
PROCESS OF SCIENCE Which of the following results provided evidence of a discrete nuclear localization signal somewhere on the nucleoplasmin protein?
a. The nucleoplasmin protein was small and easily slipped through the nuclear pore complex.
b. After cleavage of the nucleoplasmin protein, only the tail segments appeared in the nucleus.
c. Removing the tail from the nucleoplasmin protein allowed the core segment to enter the nucleus.
d. The SRP bound only to the tail of the nucleoplasmin protein, not the core segment.
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What structure do animal cells have, and that plant cells do not have, that aids in Mitosis? Explain.
a) nucleus
b) centriole
(c) spindle fibers
d) chromatids
Suppose cells in an experiment had been labeled with green fluorescent tubulin.
At the onset of Anaphase B, you use your laser to bleach a stripe across all of the
microtubules on one side of the spindle as shown by the dashed line. This does
not hurt the function of the microtubules in any way, but the bleached,
nonfluorescent subunits in the microtubules now serve to mark a fixed location
relative to the (+) and (-) ends.
pl. membr.
spindle
A. Label one of each of the following: kinetochore MT, astral MT, polar MT.
Indicate (+) and (-) ends.
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plasma membrane? Why?
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Chapter 7 Solutions
Biological Science (7th Edition)
Ch. 7 - What are three attributes of mitochondria and...Ch. 7 - PROCESS OF SCIENCE Which of the following results...Ch. 7 - Molecular zip codes direct molecules to particular...Ch. 7 - How does the hydrolysis of ATP result in the...Ch. 7 - Prob. 5TYUCh. 7 - 7. Most of the proteins that enter the nucleus...Ch. 7 - Prob. 11PIATCh. 7 - 12. MODEL The distribution of melanosomes in cells...Ch. 7 - Prob. 15PIATCh. 7 - Prob. 16PIAT
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