Warm Up Analyze why A+ G = C+ T

Define the Following: Conservative traditional Replicate duplicate Transcribe Copy Translate To change from one form to another

Replication of DNA Semiconservative Replication Parental strands are used as templates produce DNA molecules that have: one strand of parental DNA and one new strand of DNA. New DNA with one Strand of Parent DNA and one new strand. Template Strand of Parent DNA Parent DNA

Replication of DNA Explain Semiconservative Replication.

Three Stages Unwinding Base Pairing Joining Replication of DNA Why would DNA need to unwind? Recall the bases

Review What is an enzyme? Protein that speeds up biological reaction.

Replication of DNA Unwinding DNA helicase (an enzyme) unwinds the DNA double helix. Makes a single strand

Replication of DNA Base pairing DNA polymerase ( an enzyme) adds nucleotides to the chain to the new DNA strand. A-T G-C

Base Pairing Practice AACGTACGATCGATGCA TTGCATGCTAGCTACGT

Leading Strand Built continuously Lagging Strand Built discontinuously Okazaki Fragments Fragments are connected by DNA ligase(enzyme)

DNA ligase links the two sections. Replication of DNA Joining DNA ligase links the two sections. http://highered.mcgraw-hill.com/sites/9834092339/student_view0/chapter14/dna_replication.html

Eukaryotes VS. Prokaryotes DNA Replication Eukaryotes VS. Prokaryotes Eukaryotic DNA unwinds in multiple areas as DNA is replicated. In prokaryotes, the circular DNA strand is opened at one origin of replication.

Quiz Indicate the sequence of the template strand if a nontemplate strand has the sequence 5’ATGGGGCGC 3’ Describe the process of DNA Replication.