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Immortality. "A hallmark of cancer cells is immortality. The only cells in the body that are usually 'immortal' are germ cells and some stem cells. Other cells in the body are not immortal and can divide only a limited number of times before they either cease dividing or die. One block to unlimited cell division is a specialized structure at the end of each chromosome called the telomer." (Huether, McCance 2008, p 231)
What else can I help you with?
When is telomerase active?
Telomerase is typically active during cell division to maintain the length of telomeres, which are protective caps on the ends of chromosomes. In most somatic cells, telomerase activity is low or absent, but in stem cells, germ cells, and cancer cells, telomerase is more active to prevent telomere shortening.
What kinds of organisms require teleomerase?
Telomerase is primarily required by organisms that have cells capable of unlimited division, such as stem cells, germ cells, and many cancer cells. In these cells, telomerase helps maintain the length of telomeres, which are protective caps at the ends of chromosomes that shorten with each cell division. While most somatic cells in higher organisms lack significant telomerase activity and undergo a limited number of divisions, certain unicellular organisms, like yeast and some protozoa, also rely on telomerase for their reproductive and longevity processes.
Is there presence of water oxygen on mars?
There is ice beneath the surface of Mara and at its polar caps. The atmosphere contains small amounts of oxygen.
Which foods contain telomerase enzymes?
Telomerase enzymes are not found in food. Telomerase is an enzyme that is produced by the body and is involved in maintaining the length of telomeres, which are protective caps at the end of chromosomes. Eating a healthy diet rich in fruits, vegetables, whole grains, and lean proteins can support overall health and possibly help in maintaining telomere length.
What planet has water found only in its ice caps?
Mars is the planet known to have water primarily found in its polar ice caps. These ice caps consist of water ice and dry ice (frozen carbon dioxide). While there is evidence of liquid water in the past, current observations indicate that water is largely trapped in these icy regions. The presence of water ice on Mars is significant for future exploration and potential habitability.
Explain telomere erosion and the role of telomerase?
Telomere erosion is the shortening of the protective caps at the end of chromosomes called telomeres, which occurs with each cell division and is associated with aging and cell senescence. Telomerase is an enzyme that helps to maintain telomere length by adding repetitive DNA sequences to the ends of chromosomes. It is particularly active in stem cells and cancer cells, allowing them to continue dividing without undergoing senescence or apoptosis.
When is telomerase active?
Telomerase is typically active during cell division to maintain the length of telomeres, which are protective caps on the ends of chromosomes. In most somatic cells, telomerase activity is low or absent, but in stem cells, germ cells, and cancer cells, telomerase is more active to prevent telomere shortening.
What enzyme is present in cancer cells which scientists believe allows the cancer cells to keep growing indefinitely?
The enzyme present in cancer cells that allows them to keep growing indefinitely is called telomerase. Telomerase helps maintain the length of the telomeres, which are the protective caps on the ends of chromosomes. By preventing telomeres from shortening with each cell division, telomerase enables cancer cells to keep dividing and growing uncontrollably.
Do gases pass through your Capillaries?
Yah dummy. Oxygen passes into the cells from caps and Carbon Dioxide out of the cells into the caps
Is bottle caps for cancer therapy a hoax?
I would say so. How would a bottle cam cause cancer? Or stop cancer for that matter?
What stops the chromosomes from getting tangled during mitosis?
telomeres. They are like shoelace caps. they shorten after time, causing cell death. Telomerase is an enzyme that stem cells, and cancer cells have that lengthens the telomeres, virtually making them immortal. Tweak my answer as necessary. Thanks Anonymous helper
Do all mountains have snow caps?
No, not all mountains have snow caps. The presence of snow caps depends on factors such as elevation, latitude, and climate. Mountains in higher latitudes or with higher elevations are more likely to have snow caps year-round.
Purpose of a telomere?
A telomere is the structure at each end of a chromosome. It consists of an area of highly repeated DNA combined with protein. Its main function is to protect the end of the chromosome.Telomeres are instrumental in enabling the cells to divide and replicate. But as we grow older these tips wear out and shorten much like the shoelace caps. When they get too short, we get diseases and die. The three Nobel Prize winners found this as they were looking for a cure for cancer.
How should you as a crowd control officer make your presence whist at nightclub duty?
Pop some caps in the roof
Is there presence of water oxygen on mars?
There is ice beneath the surface of Mara and at its polar caps. The atmosphere contains small amounts of oxygen.
What kinds of organisms require teleomerase?
Telomerase is primarily required by organisms that have cells capable of unlimited division, such as stem cells, germ cells, and many cancer cells. In these cells, telomerase helps maintain the length of telomeres, which are protective caps at the ends of chromosomes that shorten with each cell division. While most somatic cells in higher organisms lack significant telomerase activity and undergo a limited number of divisions, certain unicellular organisms, like yeast and some protozoa, also rely on telomerase for their reproductive and longevity processes.
Why you would expect to cells if you looked at a sections of a mushroom caps under a microscope?
Organisms vary in size from the microscope.
