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Telomeres shorten with each cellular replication; telomere length is inversely proportional to age. While telomere extension does tend to make cells "young again", telomere extension is problematic for a treatment for age because many kinds of cancer replicate indefinitely due in part to the fact they have overactive telomerase, a protein that extends the telomeres. Until the link between cancer and telomeres is understood, telomere extension therapy will not be feasible.
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Tiny rods in meshworks or bundles that help cell to shorten?
Telomeres
What are several criticisms of the real age concept that have been raised by other experts in the science of aging?
One of the long-term arguments about aging is between a person's calendar age and biological age. Calendar age being your chronological time period by measurement of days and Biological meaning your fixed age.
Which of the following statements best reflects the symbolic-interaction approach to the study of aging?
APEX - Perceptions of aging change with culture.
Explain difference between internal link and external link?
Anchor Link - A hyperlink which points to a specific element on the same page.Internal Link - A hyperlink that links to another page on the same website.External Link - A hyperlink that links to another website.
Can water slow aging?
Yes! -It is referred to as hydration!
When will be first experiment on humans to stop all genes of aging?
It is difficult to predict when the first experiment on humans to stop all genes of aging will take place, as such a development would need thorough testing and ethical considerations. Research is ongoing in the field of aging and genetics, but more time and studies are needed before reaching a point where interventions on all aging genes would be feasible in humans.
What is the protective cap of DNA on the tip of chromosomes?
The telomere is the protective cap of DNA on the tip of chromosomes. You lose a small amount of these telomeres each time the cell divides. Eventually the telomeres be lost as you age. Short chromosomes because of lack telomeres are one reason aging occurs.
How may the degradation of telomeres result in cellular aging?
The degradation of telomeres, which are the protective caps at the ends of chromosomes, results in cellular aging because each time a cell divides, a small portion of the telomere is lost. As telomeres shorten, it eventually reaches a critical length that triggers cell senescence or programmed cell death. This leads to a reduction in the cell's ability to divide and function properly, contributing to the overall aging of tissues and organs.
Replication of telomers and its segnificance in aging?
Maintaining telomere length has been associates with aging. The enzyme telomerase adds nucleotides to the ends of telomeres thereby maintaining their length. This enzyme is able to function only until a certain limit, called the Heyflick limit (named after the person who first reported this phenomenon). When the heyflick limit is reached, telomeres cannot be enzymatically lengthened and are programmed for death
What is the aging?
Aging is the most common form of degenerative disease. It infects everyone and is 100% fatal. Although long looked at as a natural process, there has been significant progress in combating it's effects. It is thought to be caused by a decrease in the length of telomeres in the process of cell replication.
Why was elizabeth blackburn awarded the nobel prize in 2009?
Elizabeth Blackburn was awarded the Nobel Prize in Physiology or Medicine in 2009 for her discovery of how chromosomes are protected by telomeres and the enzyme telomerase. Her research shed light on the role of telomeres in cellular aging and cancer development.
Is obesity related to telomeres?
Yes. We all begin as 1 cell and as it divides the telomeres become shorter. Larger people have more cells than smaller people and therefore have shorter telomeres.
What is structure is the mitotic clock?
Telomeres
Why do prokaryotic chromosomes not have telomeres?
because it has its own modification and restriction system which prevents its own DNA from degradation as telomeres are mainly responsible to protect the DNA from exonuclease activity of DNase.
At what part will DNA strand separate?
telomeres
How do you naturally lengthen telomeres?
regular exercise.
What helps to prevent the loss of genes?
Telomeres
