Concept explainers
To analyze:
Why therapy that rebuilds the telomeres would not be a good way to achieve “eternal youth”.
Introduction:
The shortening of the telomere at each cycle of
Explanation of Solution
Cell death is very much a part of the natural functioning of a multicellular organism. This, however, leads to aging. It is known that the shortening of the telomeres of a chromosome beyond a certain point leads to cell death. However, if an attempt is made to maintain the length of telomeres by rebuilding them, the cells can turn cancerous. People who undergo such a therapy will have increased risk of cancer.
Rebuilding of the telomeres can make the cells become cancerous. this kind of therapy increases the risk of death by cancer. Therefore, it is not a good solution to the quest for “eternal youth”.
Want to see more full solutions like this?
Chapter 8 Solutions
What Is Life? A Guide to Biology with Physiology (Looseleaf)
- Cancer is a disease in which cells exhibit uncontrolled cell division. Drugs used in the study of microtubules are also used in the treatment of cancer. Why are drugs that disrupt microtubules more useful in the treatment of cancer than are drugs used to disrupt microfilaments? What is the name of the category of these drugs that describes their function?arrow_forwardSuppose you discover a new gene called ABC that contributes to the efficiency of DNA damage repair. You have noticed that cells carrying mutations in this gene stop dividing and go into senescence. Do you think that mutations in this gene can cause cancer? Briefly explain your answer.arrow_forwardWhat does cancer drugs play in interrupting mitosis of cancer cells? How do these drugs do that?arrow_forward
- Cancer, the uncontrolled growth of cells, often results in a tumor, or mass of abnormal cells. Some cancerous tumors consist of many cells that are much smaller than normal. According to Figure 1, what part of the cell cycle is most likely being affected? Explain.arrow_forwardWhich 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 responsearrow_forwardDiscuss the connection between celldivision and cancer cells? How do cancercells divide indefinitely? Why do cancercells kill normal cells of the body?arrow_forward
- What separates cancer cells from normal cells? Describe one form of mutation that can increase the risk of a normal cell being cancerous.arrow_forwardHow can errors in the cell cycle lead to cancer in humans?arrow_forwardWhich statement is NOT true about mitosis? A Mitosis uses a 2n parent cell to form daughter cells containing 1n chromosomes.Mitosis is a process that duplicates and divides the nuclear contents only. B Mitosis produces two daughter cells that contain the same number of chromosomes as the parent cell. C Mitosis uses a 2n parent cell to form daughter cells containing 1n chromosomes. D Mitosis is nuclear division plus cytokinesis.arrow_forward
- How has the study of mitosis affected scientists’ knowledge of cancer?arrow_forwardWhich of the following are characteristics of aging cells (select all that apply)? A. Chronic inflammation results in premature shortening of telomeres B. Lengthening of telomeric DNA sequence C. Accumulation of telomere-dysfunction–induced foci (TIFs) D. Older cells produce more telomerase E. Increased erosion of telomeresarrow_forwardWhich of the following is not a characteristic of cancer cells? an increase in density dependent inhibition an increase in telomere length a decrease in DNA repair a decrease in cell adhesion molecules an increase in chromosome abnormalitiesarrow_forward
- Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage LearningHuman Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning