00:01
Okay, in order to talk about telomers.
00:03
Okay, if this is a chromosome, telomers are like the ends of chromosomes.
00:11
Okay, this is a telomer for example.
00:13
Okay, and when the cell undergoes cell division or dna replication, practically, dna replication, okay, these tolemers are going to get shorter and shorter each time.
00:28
Okay, practically the length of telomers express the capability of replicating of the chromosomes.
00:35
Okay, so when the telomers get too short, they are not, the cells practically are not going to be able to continue replicating.
00:43
Because of this, we have an enzyme called telomerase.
00:47
Okay? so, when you have a telomere, and when you do cell replication and the telomers shorten, this telomeres is going to place here and it is going expand the telomers in order to maintain the capability or the ability of a cell to replicate.
01:08
Okay? so, with its knowledge, let's see out the options.
01:13
Telomerase.
01:14
A, is active in many cancer cells...