telomeres

Patrick J. Maher maherp1 at TIGER.UOFS.EDU
Wed Apr 29 10:57:43 EST 1998


> do bacteria have telomeres?
> 
> skyamsen
Linear chromosomes, due to the nature of DNA polymerase, shorten after
every successive replication by a couple bases.  Therefore those organisms
with linear chromosomes have an enzyme call telomerase which adds
repetative sequences onto the ends of the chromosomes called telomeres so
no genes are lost by the shortening of the chromosomes.  
Since it's the eucaryotes that have the linear chromosomes not the
eubacteria (ie bacteria) which have circular chromosomes, 
bacteria do not have telomeres.

Patrick Maher




More information about the Microbio mailing list