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Which part of chromosome exchange during meiosis centromere or telomere?
During meiosis, chromosome exchange occurs at the chiasmata, which are points of crossing over between non-sister chromatids. The exchange involves the exchange of genetic material between homologous chromosomes, not specifically at the centromere or telomere regions.
What term describes a structure that protects the ends of a chromosome?
Telomere. Telomeres are repetitive DNA sequences located at the ends of chromosomes that help protect them from degradation and prevent the loss of genetic information during cell division.
What part of the chromosome might be involved with processes such as aging and cancer?
Telomeres, located at the ends of chromosomes, play a role in aging and cancer. They protect the chromosome from degradation and help regulate cell division. Loss of telomere function has been associated with both aging and cancer development.
What is the name of the string of repetitive DNA at the tip of each chromosome in the body?
The repetitive DNA at the tip of each chromosome is called a telomere. Telomeres protect the chromosome from deterioration or fusion with neighboring chromosomes, and they shorten with each cell division. This shortening is linked to aging and disease.
Are all of the genes in a cell used?
No, there is garbage DNA at the ends of the chromosomes (Telomere). The telomere does have a purpose but it does not get used for instructions to create fingers or modify skin complexion etc.
What is the medical definition of telomere?
A telomere in medical terminology means the end of a chromosome that is used to regenerate cells. Every time a cell dies the telomere regenerates the cell.
When was The Unraveling created?
The Unraveling was created on 2001-04-24.
What do you call the tip of a chromosome?
Telomere
What is the tip of chromosome called?
telomere
How many pages does The Great Unraveling have?
The Great Unraveling has 426 pages.
Which part of chromosome exchange during meiosis centromere or telomere?
During meiosis, chromosome exchange occurs at the chiasmata, which are points of crossing over between non-sister chromatids. The exchange involves the exchange of genetic material between homologous chromosomes, not specifically at the centromere or telomere regions.
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 was The Great Unraveling created?
The Great Unraveling was created in 2003-08.
What do telomerase do?
enzyme that helps in sythesis and elongation of telomere length
Does the entire DNA replicate?
No, the telomere is shortened after each replication.
What is the link between telomeres and aging?
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.
What rhymes with traveling?
unraveling
