BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
3rd Edition
ISBN: 9781260670929
Author: Hoefnagels
Publisher: MCG CUSTOM
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Textbook Question
Chapter 11, Problem 8WIO
Mature neurons in the brain do not replicate. Why are stem cells an intriguing solution to patients who suffer from traumatic brain injury?
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3) Examine the graph showing the relative percentage normal and cancer cells spend in various stages of the cell cycle. Based on the information in the graphs, infer how cancer cells differ from typical, noncancerous cells. Select ALL that apply.
A) Cancer cells do not replicate their DNA.
B) Cancer cells replicate their DNA too quickly.
C) Cancer cells do not go through interphase during their cell cycle.
D) Cancer cells spend more time dividing compared to typical cells.
E) Cancer cells do not always grow to the same size as typical cells.
more than 1 answer. not graded
Note :
— don't copy in google or bartleby. Plagarize checker will be used.
QUESTION :
— A mature Red Blood Cell has no nucleus. What is the significance of this?
— If it has no nucleus, how is it synthesize then?
Imagine that there are mutations in the CDK genes such that their gene products are nonfunctional. What effect would this
mutation have on an immature unspecialized blood cell precursor found in the bone marrow?
The cell would not be able to reproduce itself.
The cell would complete the cell cycle using cyclins in the absence of CDKS.
The cell would be able to replicate its DNA but not translate DNA into RNA.
The cell would be able to enter mitosis but not complete it.
The cell would still phosphorylate the CDK-associated target proteins, and would do so more quickly.
Chapter 11 Solutions
BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
Ch. 11.1 - What is DNA technology?Ch. 11.1 - In what fields is DNA technology useful?Ch. 11.2 - What are some uses for transgenic organisms?Ch. 11.2 - What are the steps in producing a transgenic...Ch. 11.2 - How do tagged nucleotides participate in first...Ch. 11.2 - What is the function of 98.5 of the human genome...Ch. 11.2 - How does PCR work, and why is it useful?Ch. 11.2 - How are short tandem repeats used in DNA...Ch. 11.2 - Why do investigators sometimes analyze...Ch. 11.3 - Describe the differences among embryonic, adult,...
Ch. 11.3 - What are the potential medical benefits of stem...Ch. 11.3 - Summarize the steps scientists use to clone an...Ch. 11.3 - Why is the technique used to clone mammals called...Ch. 11.4 - Explain how and why a researcher might use a DNA...Ch. 11.4 - Compare and contrast preimplantation genetic...Ch. 11.4 - Prob. 3MCCh. 11.4 - Describe how CRISPR-Cas9 targets a specific gene...Ch. 11.4 - Prob. 5MCCh. 11 - If a restriction enzyme cuts between G and A...Ch. 11 - Which of the following is not a reason that...Ch. 11 - The function of electrophoresis is to a. break a...Ch. 11 - Why is PCR useful? a. Because it replicates all...Ch. 11 - Suppose an investigator at the scene of a murder...Ch. 11 - What is an induced pluripotent stem cell? a. A...Ch. 11 - Dolly the sheep was the first clone of an adult...Ch. 11 - Prob. 8MCQCh. 11 - Preimplantation genetic diagnosis would be least...Ch. 11 - What is the role of a virus in gene therapy? a. It...Ch. 11 - What techniques might researchers use to produce...Ch. 11 - Transgenic crops often require fewer herbicides...Ch. 11 - Describe why sorting DNA fragments by size is...Ch. 11 - Explain how the ingredients in a PCR reaction tube...Ch. 11 - Prob. 5WIOCh. 11 - Why are entire genomes not used for DNA profiling?Ch. 11 - Prob. 7WIOCh. 11 - Mature neurons in the brain do not replicate. Why...Ch. 11 - Unneeded genes in an adult animal cell are...Ch. 11 - Scientists are interested in cloning an extinct...Ch. 11 - Prob. 11WIOCh. 11 - Prob. 12WIOCh. 11 - Use the Internet to research an application of...Ch. 11 - Prob. 14WIOCh. 11 - Review Burning Question 11.11, which describes the...Ch. 11 - Review the Survey the Landscape figure in the...Ch. 11 - How does PCR related to DNA profiling and...Ch. 11 - Add the terms restriction enzyme, plasmid, virus,...Ch. 11 - How is a patient who receives gene therapy similar...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Why are proto-oncogenes present in non-cancerous cells? A one sentence answer is fine.arrow_forwardPart A and B A. What is the normal function of the Rb protein? A) Rb prevents the cell cycle from proceeding unless the cell is prepared to do so B) Rb causes cells to undergo apoptosis C) Rb promotes Cdk activation D) Each of the other selections is true E) Rb repairs damaged DNA B. How do tumors arise? A) When cell proliferation occurs at a higher rate than cell death B) When someone is infected with a tumor from another person C) When cell death occurs at a very high rate D) When cell proliferation occurs at a very low ratearrow_forwardWhich is true for cancer cells: 1) Cell death occurs after a determined number of cell divisions 2) Contact with other cells reduces chance of cell division 3) Cell division occurs in the presence of stop signals.arrow_forward
- what would be the likely effect of a mutation that prevented the formation of memory cells?arrow_forwardRetroviruses can cause cancer, along with some viruses with DNA genomes. For example, herpes papillomavirus causes cervical cancer. The HPV genome encodes a protein called E6 that interferes with p53 function, and another protein called E7 that inhibits the function of Rb protein. Explain how HPV causes cancer. Are the viral E6 and E7 protein functions more similar to oncogenes or tumor suppressors?arrow_forwardD) The level of carbon dioxide increases with the level of available oxygen. 60) The TP53 gene provides instructions for making a protein called tumor protein p53. Known as the guardian of the genome, this protein acts as a tumor suppressor, which means that it regulates cell division by keeping cells from growing and dividing too fast or in an uncontrolled way. The p53 protein is located in the nucleus of cells throughout the body, where it attaches directly to DNA and plays a critical role in determining whether the DNA will be repaired or the damaged cell will self- destruct (undergo apoptosis). If the DNA can be repaired, p53 activates other genes to fix the damage. If the DNA cannot be repaired, this protein prevents the cell from dividing and signals it to undergo apoptosis. eg Suppose chromosomes in a skin cell are damaged by ultraviolet radiation. If the damaged genes do not affect p53, which choice correctly predict if the cell will become cancerous and why? No, the cell will…arrow_forward
- Part A and B A. What below would be likely to lead to cancer development? A) Overexpression of a cell cycle checkpoint inhibitor B) Loss of expression of a growth factor that promotes cell cycle entry C) Overexpression of a receptor tyrosine kinase that promotes cell cycle entry D) Overexpression of a DNA damage repair enzyme E) Loss of expression of a regulatory transcription factor that activates transcription of a cyclin B. Taxols inhibit the proper function of microtubules and are frequently used as chemotherapy drugs. What is the function of microtubules during the cell cycle? A) They promote the G1 to S checkpoint B) They normally inhibit M phase from being completed C) They form the mitotic spindle E) They mediate DNA replication F) They form the cleavage furrow during cytokinesisarrow_forwardGive detailed Solution with explanation needed....give correct solution. don't use Ai for answering this..arrow_forwardI am confused about how stem cell transplants works. If you put a semi differentiated tadpole nucleus in a denucleated egg cell, it’ll develop into a fully formed tadpole, but if you put a fully differentiated tadpole nucleus, it won’t (because the genes have already been expressed in a way where the cytoplasmic determinants cannot operate to the fullest). Then how come in stem cell transplants, you use adult nucleuses that are already developed and transplant them into the denucleated egg cells?arrow_forward
- Human tumour viruses account for an estimated 12% to 20% of cancers worldwide and often establish persistent infections in the host. Explain how viruses contribute to cancer development.arrow_forwardWhy is it important to model cancer through the generation of induced pluripotent stem cells ? Explain in detail the main findings. Please sort as a list.arrow_forwardFinding drugs to treat viruses is far more challenging than finding drugs to treat bacteria. A. Why the difference? Ans: Viruses need a host cell to replicate and a bacteria needs food to continue to replicate. B. What can anti-viral drugs target in order to bring a viral infection under control, or to prevent a viral infection in the first place? Ans: To bring an infection under control you would want to inhibit protease so it could not break down the polypeptide protein chain down into new protein coats. C. What can anti-viral drugs target to prevent a viral infection in the first place? Ans: To prevent a viral infection in the first place you could take a medication that would alter the surface receptor, fill in the surface receptor or inhibits the viral surface protein all together. D. Offer 2 examples of drugs used to control viral infections (specify virus) and how do they work on different targets. Ans:…arrow_forward
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