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Transcript
Name:
Living Environment R
Per:
Date:
Unit 4: Modern Genetics
Aim 2: How does the cell make new DNA
I. What is DNA Replication?
 A cell has to ________________________________ its DNA
o _____________________________________________________________________
o To make sure ________________ in a multicellular organism have _______________
____________________________
 A strand of DNA can act as ________________
_______________________________________
_______________________________________
o Complementary base pairing
II. Steps of DNA Replication
1. __________________________________________________________________________
__________________________________________________________________________
2. __________________________________________________________________________
3. The result is two new DNA molecules with the same sequence of bases as the original
 This process is semiconservative: ______________________________________________
__________________________________________________________________________
 Enzymes ________________________ the new DNA molecules to make sure DNA was
copied correctly
o Mistakes in DNA replication cause mutations: _______________________________
__________________________