Presentation is loading. Please wait.

Presentation is loading. Please wait.

DNA Replication Replication is semi-conservative (one strand is old, one strand new) Each strand serves as a template (or pattern) for the new strand.

Similar presentations


Presentation on theme: "DNA Replication Replication is semi-conservative (one strand is old, one strand new) Each strand serves as a template (or pattern) for the new strand."— Presentation transcript:

1

2

3

4 DNA Replication Replication is semi-conservative (one strand is old, one strand new) Each strand serves as a template (or pattern) for the new strand

5 Origins of Replication Where DNA Replication starts Differs between organisms –Prokaryotes = 1 origin of replication –Eukaryotes = many different origins of replication

6 General Process of DNA Replication Step 1: –DNA Helicase separates the DNA helix Step 2: –DNA Polymerase III builds the new strand of DNA

7

8 -Nitrogenous bases are located in the cytoplasm -They enter the nucleus through the pores in the nuclear membrane

9

10

11 Thymine is added accidentally. DNA polymerase cuts the damaged DNA. The proper base is added. Ligase joins the two spots.

12 DNA Ligase –Forms covalent bonds between nucleotides to create a continuous strand of DNA –When DNA Polymerase I edits the DNA strand, DNA Ligase attaches the bases on one side of the DNA strand together.

13

14 DNA Replication Replicate the following DNA strand: A – G – G – C – T – T – C – A – G – T T – C – C – G – A – A – G – T – C - A

15


Download ppt "DNA Replication Replication is semi-conservative (one strand is old, one strand new) Each strand serves as a template (or pattern) for the new strand."

Similar presentations


Ads by Google