Chapter 12 Exam 3 Flashcards
what is at the 3’ end of DNA
deoxyribose
what is at the 5’ end of DNA
phosphate group
what happens during DNA replication
the two strand of the parental duplex separate. each parental strand serves as a template for the synthesis of a new daughter strand using base pairing
what directionality does replication occur
5’ to 3’
what does helicase do
unwinds the DNA duplex
what does topoisomerase 2 do
relieves the stress of unwinding
what does DNA polymerase to
extends to RNA primer
what do single stranded binding proteins do
stabilize single strands of DNA
where are Okazaki fragments found
on the lagging strand
what does ligase do
removes primers and connects backbone
what is the leading strand
3’ strand of newly synthesized DNA
what is the lagging strand
5’ strand of newly synthesized DNA
