0
Chromosomes consist of two arms that extend out from a specialized region of DNA , called Centromere. Centromere or primary constriction gives a particular shape to chromosomes due to its position. The chromosome extremities or terminal regions on either side are called telomeres.
Wiki User
∙ 9y ago
Wiki User
∙ 6y agoThey are the regions at each end of a chromosome where there are a series of repetitive nucleotide sequences that prevent the chromosome from deterioration, or from fusion with other chromosomes.
Add your answer:
Earn +20 pts
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.
Explain telomere erosion and the role of telomerase?
A simple explanation of telomere erosion is an act that occurs whenever a cell divides. Telomerase is an enzyme and its role is to control the telomere present.
What is the tip of chromosome called?
telomere
What do you call the tip of a chromosome?
Telomere
What are the end of the chromosome called?
telomere
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.
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.
Does the entire DNA replicate?
No, the telomere is shortened after each replication.
What term describes a structure that protects the ends of a chromosome?
A Telomere
What do telomerase do?
enzyme that helps in sythesis and elongation of telomere length
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 part of the chromosome might be involved with processes such as aging and cancer?
Telomere
