Enzyme which prevents aging/senescence is:
Teloemrase prevents ageing. Telomerase RNA dependent DNA polymerase/ Reverse transcriptase Absent in somatic cells Not a ribozyme It is a ribonucleoprotein (RNA + protein)(act as enzyme). Increases longevity of cells Prevents telomere shoening (prevents ageing or senescence) Activity of enzyme decreased in ageing increased in cancer Premature ageing (Progeria) occurs if telomerase decreases
DNA Polymerase
Catalase
Telomerase
Peroxidase
Replication