If a starfish sustains damage to a limb, it often grows a new one. If a human adult sustains damage to his or her spinal cord, mobility is often impaired. If a gecko loses its tail, it may grow a new one. Which type of cell is less likely to go through the cell cycle after being damaged— starfish limb, human spinal cord, or gecko tail? Support your answer.

If a starfish sustains damage to a limb, it often grows a new one. If a human adult sustains damage to his or her spinal cord, mobility is often impaired. If a gecko loses its tail, it may grow a new one. Which type of cell is less likely to go through the cell cycle after being damaged— starfish limb, human spinal cord, or gecko tail? Support your answer.

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter2: Cells And Cell Division

Section: Chapter Questions

Problem 12QP: Why is cell furrowing important in cell division? If cytokinesis did not occur, what would be the...

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If a starfish sustains damage to an arm, it often grows a new one, as long as part of the central disc is still attached (known as regeneration). If a gecko loses its tail, it may regenerate a new one. If a person damages their spinal cord, mobility is often impaired. Which type of cell is less likely to go through the cell cycle after being damaged— starfish arm, gecko tail or human spinal cord? Explain in terms of the cell cycle.
Let us have an example, imagine that the cell is a car. For the car to work properly there are factors that need to be consider like the gas pedal and a brake pedal. If the gas pedal works normally it helps the cell to divide. But when the gas pedal gets stuck, it can cause uncontrolled cell division leads to cancer formation. How about if the brake pedal gets stuck, and the car cannot slow down, accident happens and causes cell death. Guide Questions: 1. Gas pedal that works normally and helps the cell to divide can be compare to what kind of gene? Is it oncogene, proto-oncogene or tumor suppressor gene? Explain your answer. 2. Gas pedal that gets stuck and causes uncontrolled cell division leads to cancer is what kind of gene? Is it oncogene, proto-oncogene or tumor suppressor gene? Explain your answer. 3. Brake pedal that gets stuck causes car accident and even death can be compare to what kind of gene? Is it oncogene, proto-oncogene or tumor suppressor gene? Explain your answer.
What is Cancer Discuss what makes a cell cancerous. Consider the following: Cell Cycle Identical cells Movement of cells Dividing cells Benign and malignant**
Some male veterans of the Gulf War in Iraq claim that their children have birth defects that were caused by toxic substance contaminating the war zone. What types of cells would a toxin have to have affected in these men to cause birth defects years later? Explain your answer.
A cell with one mutation is unable to complete cell division (mitosis). What intracellular structure/structures might be defective? Explain your answer by first giving the normal role of this/these structures and then explaining why when defective, it/they might prevent the cell from completing mitosis.
Let us have an example , imagine that the cell is a car . For the car to work properly there are factors that need to be consider like the gas pedal and a brake pedal . If the gas pedal works normally it helps the cell to divide . But when the gas pedal gets stuck , it can cause uncontrolled cell division leads to cancer formation .How about if the brake pedal gets stuck , and the car cannot slow down , accident happens and causes cell death. QUESTION Gas pedal that works normally and helps the cell to divide can be compare to what kind of gene ? Is it oncogene , proto - oncogene or tumor suppressor gene ? Explain your answer. Gas pedal that gets stuck and causes uncontrolled cell division leads to cancer is what kind of gene? Is it I oncogene, proto-oncogene or tumor suppressor gene? Explain your answer. Brake pedal that gets stuck causes car accident and even death can be compare to what kind of gene ?Is it oncogene, proto- oncogene or tumor suppressor gene? Explain your answer.
Many cancer drugs stop cell division. List several mechanisms that could hinder cell division?
What type of cell is circled in black? Hint: This is a single cell.
Which of the following is mismatched? M stage - mitosis and cytokinesis G 2 stage - metabolic preparation for mitosis interphase - shortest stage of the cell cycle G 1 stage - cell grows in size and cell organelles increase in number S stage - DNA synthesis
Match each cell type with its correct description.
What is the purpose of cells doing mitosis and cytokinesis? (Answer should explain why a living thing would need to make identical copies of its cells during its lifetime.)
Organisms in temperature zones are able to time their activities to cues given by the photoperiod, since: O A. All organisms have a biological clock. OB. All organisms need time to rest. C. Light is a limiting factor. OD. Day length is always constant for a specific locality and season.