90% of cancer cells have active telomerase enzymes. How does this play a role in cancer and how they divide fast.
90% of cancer cells have active telomerase enzymes. How does this play a role in cancer...
What allows cancer cells to divide an infinite number of times? Telomerase genes become active in cancer cells The ends of the chromosomes become resistant to degradation in cancer cells Cancer cells contain special DNA repair genes not found in healthy cells Cancer cells lack signal transduction pathways
How does cancer cells EMT promote resistance? What role does the immune micro environment play?
Activation of the telomerase gene is an indicator of cancer progression. How does the telomerase gene assist in granting cancer cells 'immortality'?
what does telomerase enable cancer cells to do the normal adult somatic cells cannot do?
1. Inflammation can play a role in cancer (development and/or progression) in which of the following ways? Select all that apply. Question options: A) TILs can secrete pro-inflammatory cytokines that promote cancer. B) TAMs can attack cancer cells and destroy them. C) Ulcerative colitis can progress to colon cancer. D) Immune cells associated with a cancer can secrete angiogenic and growth factors. E) Hepatitis C infection can lead to liver cancer. F) Hypercholesterolemia can develop into leukemia. 2. Tumor suppressor...
Question 18 4 pts What role do restriction enzymes play in bacteria? How do bacteria protect their own DNA from the action of restriction enzymes? Change the surface proteins of bacteria; since DNA is not protein, there is no need for protection Cut foreign DNA into pieces; bacteria have RNA genomes. Destroy invading viral DNA: bacterial DNA does not contain the restriction enzyme recognition sequences. Restrict the growth rate of bacteria; bacterial DNA is restriction enzyme resistant. Question 18 4...
1) What role does the active site lysine play in the mechanism of CO2 fixation in Rubisco? Hypothesize what effect the mutation of this lysine to arginine would have on the protein.
Cancer Biology
8. Re-expression of telomerase can confer immortality to emerging clones of tumor cells, and was originally viewed as an attractive target for drug discovery. However, which of the following best explains the lack of therapeutic efficacy for telomerase inhibitors? a. Telomerase alone is sufficient for transformation in human cells. b. Telomerase is required for the maintenance of somatic cell populations. c. Too many post-inhibition cell doublings would be required to see anti-tumor efficacy. d. Telomerase has sequence and...
Proteins play a role in a person's health because many are Enzymes that catalyze metabolic reactions. Minerals used by the body to prevent disease. Molecules that are encoded by tRNA to promote cell growth. Polysaccharides used by muscle cells to produce energy.
All cells maintain a polarized plasma membrane. What role does polarization play in the function of neurons? You viewed your own cheek cells. What term best describes their shape? What is the function of the small projections (cilia) observed on the pseudostratified columnar slide? Skin cells, like those you observed in the section of scalp, produce keratin, a fibrous and water resistant protein. What role does keratin serve? What is the unifying feature of all the forms of connective tissue?...