The enzyme in a eukaryote that repairs the telomeres of the chromosomes so that they do not become progressively shorter during successive rounds of chromosome replication.
〔遗传〕端粒酶
Example sentencesExamples
In nature, a chromosome can be lengthened by the enzyme telomerase, which adds new TTAGGG sequences to the end of the telomere.
Telomeres, the natural ends of linear chromosomes, are maintained by the specialized reverse transcriptase called telomerase.
In eukaryotic cells with telomeres composed of short tandem repeats, this involves the enzyme telomerase.
Human cells have an additional barrier to unfettered replication - most lack the chromosome repair enzyme called telomerase that rat cells possess.
If any components of the telomerase are missing, telomeres are gradually shortened and most cells die.
Definition of telomerase in US English:
telomerase
nountəˈlō
Genetics
An enzyme that adds nucleotides to telomeres, especially in cancer cells.
Example sentencesExamples
Human cells have an additional barrier to unfettered replication - most lack the chromosome repair enzyme called telomerase that rat cells possess.
Telomeres, the natural ends of linear chromosomes, are maintained by the specialized reverse transcriptase called telomerase.
In nature, a chromosome can be lengthened by the enzyme telomerase, which adds new TTAGGG sequences to the end of the telomere.
In eukaryotic cells with telomeres composed of short tandem repeats, this involves the enzyme telomerase.
If any components of the telomerase are missing, telomeres are gradually shortened and most cells die.