What do germ cells have?
the enzyme Telomerase which adds extra nucleotides
What produces telomerase?
many cancer cells
What corrects base-pairing errors?
DNA polymerases
Mutations can cause?
cancer in new somatic cells
or genetic disorders in offspring if occurs in gametes
What do DNA repair mechanisms do?
fix DNA damaged by mutagens
How do we clone?
through somatic cell nuclear transfer
What health problems do clones have?
die young
arthritis
no anus
What have we found out from cloning?
must reprogram cell and DNA to function as embryonic