Chapter 8 -3 Flashcards
1
Q
What do germ cells have?
A
the enzyme Telomerase which adds extra nucleotides
2
Q
What produces telomerase?
A
many cancer cells
3
Q
What corrects base-pairing errors?
A
DNA polymerases
4
Q
Mutations can cause?
A
cancer in new somatic cells
or genetic disorders in offspring if occurs in gametes
5
Q
What do DNA repair mechanisms do?
A
fix DNA damaged by mutagens
6
Q
How do we clone?
A
through somatic cell nuclear transfer
7
Q
What health problems do clones have?
A
die young
arthritis
no anus
8
Q
What have we found out from cloning?
A
must reprogram cell and DNA to function as embryonic
