CAMPBELL BIOLOGY MOD MASTERING (18 WEEK)
12th Edition
ISBN: 9780136920335
Author: Urry
Publisher: PEARSON
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Textbook Question
Chapter 12, Problem 6TYU
Which of the following does not occur during mitosis?
(A) condensation of the chromosomes
(B) replication of the DNA
(C) Separation of sister chromatids
(D) spindle formation
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Which of the following does not occur during mitosis?
(a)
(b)
(c)
(d)
Chromatin condenses and forms chromosomes.
Chromosomes move to the equator of the cell.
Spindle fibres pull homologous chromosomes to opposite poles of the cell.
Two new nuclei are formed that have two full sets of genetic information.
You discover a substance that prevents the motor protein in a centromere from attaching to a spindle fiber. What would be a consequence of adding this substance to a cell during mitosis?
Group of answer choices
A) the chromatin would not coil up to form condensed chromosomes
B) the nuclear membrane would not break down
C) sister chromatids would not form
D) sister chromatids would fail to separate
Which of the following best describes the difference between interphase and mitosis?
a) During interphase, DNA has a loose structure that condenses during mitosis.
b) During interphase, histones help compact DNA into chromosomes. And once mitosis starts, histones are destroyed.
c) During interphase, DNA is tightly packed into chromosomes that uncoil once mitosis starts.
d) During interphase, DNA is packed as chromosomes. And during mitosis, DNA is called chromatin.
Please I need a surely answer and a quicker response
Chapter 12 Solutions
CAMPBELL BIOLOGY MOD MASTERING (18 WEEK)
Ch. 12.1 - How many chromosomes are drawn in each part of...Ch. 12.1 - WHAT IF? A chicken has 78 chromosomes in its...Ch. 12.2 - How many chromosomes are shown in the illustration...Ch. 12.2 - Compare cytokinesis in animal cells and plant...Ch. 12.2 - During which stages of the cell cycle does a...Ch. 12.2 - Compare the roles of tubulin and actin during...Ch. 12.2 - A kinetochore has been compared to a coupling...Ch. 12.2 - MAKE CONNECTIONS What other functions do actin...Ch. 12.3 - In Figure 12.14, why do the nuclei resulting from...Ch. 12.3 - How does MPF allow a cell to pass the G2 phase...
Ch. 12.3 - MAKE CONNECTIONS Explain how receptor tyrosine...Ch. 12 - Differentiate between these terms: chromosome,...Ch. 12 - In which of the three phases of interphase and the...Ch. 12 - Explain the significance of the G1, G2, and M...Ch. 12 - Through a microscope, you can see a cell plate...Ch. 12 - Vinblastine is a standard chemotherapeutic drug...Ch. 12 - One difference between cancer cells and normal...Ch. 12 - The decline of MPF activity at the end of mitosis...Ch. 12 - In the cells of some organisms, mitosis occurs...Ch. 12 - Which of the following does not occur during...Ch. 12 - Cell A has half as much DNA as cells B, C, and D...Ch. 12 - The drug cytochalasin B blocks the function of...Ch. 12 - VISUAL SKILLS The light micrograph shows dividing...Ch. 12 - DRAW IT Draw one eukaryotic chromosome as it would...Ch. 12 - EVOLUTION CONNECTION The result of mitosis is that...Ch. 12 - SCIENTIFIC INQUIRY Although both ends of a...Ch. 12 - WRITE ABOUT A THEME: INFORMATION The continuity of...Ch. 12 - SYNTHESIZE YOUR KNOWLEDGE For selected answers,...
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- Which of the following does not occur during interphase? (a) (b) (c) (d) DNA is replicated. Spindle fibres form. New organelles are formed. The cell size increases.arrow_forward1) Examine the picture of an onion root tip with cells in various stages of the cell cycle. A student claims that interphase is the longest stage of the cell cycle. Another student claims that mitosis is the longest stage. Using evidence from the photo, determine which student is correct and why. A) Mitosis is the longest stage because anaphase requires more time to separate chromatids. B) Interphase is the longest stage because chromosomes are visible in the majority of the cells. C) Mitosis is the longest stage because the majority of the cells in the photo are replicating their DNA. D) Interphase is the longest stage because the majority of the cells in the photo have uncondensed chromatin and are not dividing. Not Gradedarrow_forwardNEED HELP 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) chromatidsarrow_forward
- If there are 20 chromosomes in a cell at metaphase, how many chromosomes are there is each daughter cell following cytokinesis of mitosis? a.)10 b.)20 c.)40 d.)80arrow_forwardWhich of the following diagrams correctly depicts the orientation of microtubules during metaphase of mitosis? A B C OA I (-) (+) (+) (+) (+) (+) (+) (+) (+)50 (+) == (-) XX [(+) (-) E (-) J ++) (+) - (+) (-) (+) 11 15+ E (+) (-) 50 at &&05 (-) 50) (+) (-) (-) (+) (-) D E (+) (+) (+) D (-) St (+) coff (+) (-) (+) (+) (-) (-) (+) (-) (-) affere XXX (-)- (-) ++) (+) (-) (-) (-) (-) Karrow_forwardThe reconstruction of the nuclear membrane takes place in what phase of the cell cycle? a.)Prophase b.)Metaphase c.)Anaphase d.)Telophasearrow_forward
- Which stage of mitosis in an animal cell does each part of Figure Q6 represent? (A) (B) (C) (D) Figure Q6arrow_forwardIdentify the phases of mitosis above: Anaphase Choose... + Interphase Choose... Telophase Choose... + Prophase Choose... Metaphase Choose...arrow_forwardA cell has 30 chromosomes before mitosis. After the completion of mitosis, the two daughter cells would have how many chromosomes in EACH? a). 30 b). 20 c). 15 d). 60arrow_forward
- . The decline of MPF activity at the end of mitosis is due to(A) the destruction of the protein kinase Cdk.(B) decreased synthesis of Cdk.(C) the degradation of cyclin.(D) the accumulation of cyclin.arrow_forwardTelophase in Mitosis a ) Chromosomes begin to uncoil into chromatin. b) Nucleolus and nuclear membrane begin to reappear. c) Spindle slowly dissolves. d) In animal cells, cytokinesis occurs with a cleavage furrow dividing one cell into two cells. e) In plant cells, cytokinesis occurs with the formation of a cell plate. This plate divides the original cell into two cells and is part of the new cell wall.arrow_forwardThe anticancer drug paclitaxel (Taxol), derived from the Pacific Yew, has many effects on mitosis. One of its most powerful effects is that it prevents disassembly of the mitotic spindle, which prevents spindle fibers from shortening. Which phase of mitosis would this directly affect? Why would this stop cell division overall and lead to cell death?arrow_forward
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