Telomeres Problem: replication ends Bacteria & other systems have circular chromosomes Lagging strand problem Chromosome ends are different […. .GGGTTC] telomere (end part of chromosome) Special substate for adding extra nucleotides at end for telomerase to bind to Protective measure Highly repetitive Telomerase: reversetranscriptase, encodes the ability to read RNA and turn it into DNA Somatic cells: do not reproduce a lot, low telomerase activity
This is the end of the preview. Sign up
access the rest of the document.
This note was uploaded on 11/26/2010 for the course BIO 101 taught by Professor Rytasvilgalys during the Spring '09 term at Duke.