You have a dish of mammalian cells in culture that are all about to enter mitosis...
You have a dish of mammalian cells in culture that are all about to enter mitosis (it is a synchronously replicating culture of cells). You add to the dish a drug that is a potent inhibitor of RhoA activity. Two hours later you analyze your cells under the microscope. Which of the following best describes what you might observe ?
A. All cells appear to be in telophase.
B. All cells appear to be at metaphase.
C. Around 50% of cells appear to be in anaphase A.
D. All cells have completed mitosis.
E. Around 50 % of the cells have undergone apoptosis.
Homework Answers
Option A seems to be the right answer for this.
The reason is that RhoA factor is necessary for cell rounding , rigidity & retraction. It acts on the microtubule network of the cell, particularly actin , to give proper shape to the cells & arrange the internal spindle apparatus.
Ultimately it concentrates the fibres along the brittle area ,known as the cleavage furrow. It is at this place where the cell gets divided into two (cytokinesis).
When we introduce the drug inhibiting RhoA activity in the medium, cytokinesis can't occur & the cells stay in telophase
Add Answer to:
You have a dish of mammalian cells in culture that are all about
to enter mitosis...
Please help me with this. I'm so lost. If you could be detailed/help explain, I would...
Please help me with this. I'm so lost. If you could be
detailed/help explain, I would appreciate it a lot. Thank
you.
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Please help me with this. I'm so lost. If you could be
detailed/help explain, I would appreciate it a lot. Thank
you.
Topic: Onions, Lily Anther, Mitosis and Meiosis!: Prophase I, Prometaphase I, Metaphase I, Anaphase I, Telophase I, Cytokinesis Prophase II, Metaphase II, Anaphase II, Telophase II, Cytokinesis II Tetrads Intro Pretend you were in the lab and you took some onion root tips and some lily and viewed them under the lab in a microscope. We are Concerned...
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In mammalian cells, genes that are expressed in a particular
cell are reported to undergo replication during the first half of S
phase, and genes not expressed in that cell are replicated in the
latter half of S phase.
Briefly describe an experiment that could lead to this
conclusion. You might consider approaches that involve
5-bromouracil incorporation.
Rank from the first step to the last step. To rank items as
equivalent, overlap them.
Selectively isolation early-replicatingLabeling with 5-bromodeoxyuridine genes by...
72. Looking into your microscope, vou spot an unusual coll Instead of the typical rounded cell shape, the cen dcell shape, the cell has a very narrow middle separating two bulging ends. It sort of looks like the number or to this cell is two buiging ends. It sort of looks like the number 81 You realize that A) undergoing cytokinesis. C) in the G1 phase of interphase. B) in the S phase of interphase. D) about to undergo mitosis....
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Can anyone help me with this? Thank you.
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the last image is the image for part 2. thank
you!!
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)CAM plants keep stomata closed in daytime, thus reducing loss of water. They can do this because they Il at night I and B) fis COz inho organic acids during the C) fix COg into pyruvate is the D) ix Coz into sugars i E) use the enayme ien the bundle-sheath cels whicdh outcompetes rubisco for CO 13) in yeast signal transduction, the yeast A) peoduce signal molecules that interact with one another 1 e signal molecules that change themselves...
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