Telomerase - Wikipedia
Telomerase, also called terminal transferase, [1] is a ribonucleoprotein that adds a species-dependent telomere repeat sequence to the 3' end of telomeres. A telomere is a region of …
Telomerase | Description, Function, & Facts | Britannica
Nov 21, 2025 · Telomerase is an enzyme that influences cell life span by adding organic compounds known as nucleotides to telomeres, segments of DNA located at the ends of …
Definition of telomerase - NCI Dictionary of Cancer Terms
An enzyme in cells that helps keep them alive by adding DNA to telomeres (the ends of chromosomes). Each time a cell divides, the telomeres lose a small amount of DNA and …
Composition and Function of Telomerase—A Polymerase ...
In this review, we focus on the structure, composition and function of telomerases. In addition, we discuss the origin and phylogenetic divergence of this unique RNA-dependent DNA …
Telomeres and Telomerase: Structure and Functions - Microbe …
Mar 30, 2025 · In eukaryotes, telomerase, a telomeric enzyme includes a catalytic protein subunit known as telomerase reverse transcriptase (hTERT) and a core RNA component (hTR) that …
What is the Function of Telomerase in Cells? - Biology Insights
Jul 28, 2025 · Telomerase is an enzyme classified as a reverse transcriptase; it synthesizes DNA using an RNA template. It is composed of two components: a protein catalytic subunit, …
Telomerase - an overview | ScienceDirect Topics
Telomerase is defined as an RNA-dependent DNA polymerase that synthesizes DNA sequences using RNA as a template, primarily involved in repairing and elongating telomeres during cell …