Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 10, Problem 12TYK
Summary Introduction
To review:
The points at which the amount of DNA (deoxyribonucleic acid) per cell changes during the remainder of the cell cycle.
Introduction:
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An enzyme such as ligase is a protein molecule. When high temperature is applied to ligase, the protein molecule changes its shape and is no longer able to perform its function. The enzyme is said to be denatured. If ligase was denatured in a cell, how would it affect its cell cycle?
Select one:
a. The cell would not be able to obtain amino acids.
b. The cell would not be able to transcribe DNA.
c. The cell would not be able to produce protein molecules.
d. The cell would not be able to replicate.
which of the following describes how RNA and DNA are used in mitosis?
a. leads to the synthesis of proteins that assist in cell replication
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Chapter 10 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 10.1 - What are the three interrelated systems that...Ch. 10.1 - Prob. 2SBCh. 10.1 - Prob. 3SBCh. 10.1 - Prob. 4SBCh. 10.2 - Compare the chromosome content of daughter cells...Ch. 10.2 - Prob. 2SBCh. 10.2 - Prob. 3SBCh. 10.3 - How does spindle formation differ in animals and...Ch. 10.3 - Prob. 2SBCh. 10.4 - Prob. 1SB
Ch. 10.4 - Prob. 2SBCh. 10.4 - What is an oncogene? How might an oncogene affect...Ch. 10.4 - Prob. 4SBCh. 10.5 - Prob. 1SBCh. 10.5 - Prob. 2SBCh. 10 - During the cell cycle, the DNA mass of a cell:...Ch. 10 - A tumor suppressor protein, p21, inhibits Cdk1....Ch. 10 - A major difference between hereditary information...Ch. 10 - The major microtubule organizing center of the...Ch. 10 - Prob. 5TYKCh. 10 - Which of the following statements about mitosis is...Ch. 10 - Prob. 7TYKCh. 10 - Which of the following statements about cell cycle...Ch. 10 - Which of the following is not a characteristic of...Ch. 10 - Which of the following does not accurately...Ch. 10 - In bacteria: a. several chromosomes undergo...Ch. 10 - Prob. 12TYKCh. 10 - Discuss Concepts A cell has 38 chromosomes. After...Ch. 10 - Prob. 14TYKCh. 10 - Prob. 15TYKCh. 10 - Apply Evolutionary Thinking The genes and proteins...Ch. 10 - Biologists have long been interested in the...Ch. 10 - Prob. 2ITD
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- Suppose you have a way of measuring the amount of DNA in a single cell during the cell cycle. You first measure the amount during the G1 phase. At what points during the remainder of the cycle would you predict changes in the amount of DNA per cell?arrow_forwardWhich of the following is the main reason why DNA must exist in chromosome form? a.)To favor the formation of sister chromatids b.)To allow the protein histones to carry out its task c.)To avoid the genetic material to be tangled away during cell division d.)To promote the formation of spindle fibersarrow_forwardHow do Cyclins work? a. They are kinases that phosphorylate key proteins at different points in the cell cycle. b. They are transcription factors that regulate the transcription of genes required at different stages of the cell cycle. c. They stop progression of cells through the cell cycle. d. They bind and activate kinases related to progress through the cell cycle.arrow_forward
- What is the purpose of mitosis? a It ensures that new nuclei have an exact copy of DNA. b It ensures the reproduction of mitochondria and chloroplasts. c It guarantees that each daughter cell has half the amount of DNA of parent cells. d It prevents the occurrence of cancer cells.arrow_forwardFigure 1 in the video shows the number of chromosomes observed in an actively dividing human cell at each stage of cell division. Which of the following best describes a correct interpretation of the changes in chromosomes number depicted in Figure 1? A. Restate the question and record the right answer. B. Why is this the correct answer?arrow_forwardTwo cells from an animal’s heart are removed and studied. One cell has twice the amount of DNA as the other cell. Which statement is best explains why the second cell has twice the amount of DNA as the first? A The cell is in G1 and the extra DNA is needed now that the cell entering mitosis. B The cell is in G2 of interphase and now has all the DNA it needs function correctly. C The cell has just gone through S phase of interphase and will eventually divide in mitosis. D The cell is in G0 and no longer in a dividing state and has all the DNA needs to function correctly.arrow_forward
- A scientist is studying control of the cell cycle. To do this, she decides to fuse cells in different phases of the cell cycle together, and then study the results. She fuses a frog cell in the G1 phase with a frog cell in the M phase. What do you think will happen?arrow_forwardUse the data in the accompanying table to answer the question. The data in the table was obtained from a study of the length of time spent in each phase of the cell cycle by cells of three eukaryotic organisms designed Beta, Delta, and gamma. What is the best explanation for the state associated with Delta cells?arrow_forwardAt which point in the cell cycle are cells the smallest? a. the beginning of G1 b. S c. G2 d. the beginning of mitosisarrow_forward
- In mitosis, chromosomes separate by which specific mechanism? A. chromosomes sprout flagella and begin to swim towards the ends of the cell B. molecular motors in the kinetochore move the chromosome toward the centrioles C. centrioles attract the chromosomes by electromagnetic attraction D. centrioles begin to shorten microtubules by degrading themarrow_forwardMeasurements of the amount of DNA per nucleus were taken on a large number of cells from a growing fungus. The measured DNA levels ranged from 3 to 6 picograms per nucleus. One nucleus had 5 picograms of DNA. What stage of the cell cycle was this nucleus in?arrow_forwarddraw/describe what happens in each of the cell cycle.arrow_forward
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