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DNA Replication. DNA Replication. Replication = DNA copies itself exactly (Occurs within the nucleus) Any mistake in copying = mutation DNA mutation = chromosomal mutation. A. Basic Facts of DNA Replication. 1. Complementary base pairing makes replication possible C - G

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Dna replication1
DNA Replication

  • Replication = DNA copies itself exactly

    • (Occurs within the nucleus)

  • Any mistake in copying = mutation

  • DNA mutation = chromosomal mutation


A basic facts of dna replication
A. Basic Facts of DNA Replication

1. Complementary base pairing

makes replication possible

C - G

A - T


A basic facts of dna replication1
A. Basic Facts of DNA Replication

2. One side of DNA molecule is

a

template

for

making

the

other side (strand)

?’s 1-3


B process of dna replication
B. Process of DNA Replication

  • Uncoil & unzip DNA molecule

    • Enzyme (-ase) breaks

      weakHydrogen Bond

      between bases


B process of dna replication1
B. Process of DNA Replication

2. Enzyme brings in complementary N-bases

DNA Replicase


B process of dna replication2
B. Process of DNA Replication

3. Insert N-bases

DNA Replication Tutorial

(Go here for on-your-own learning/review)

trc.ucdavis.edu/.../week5/06dnareplication.html


Replication moovie
Replication Moovie

C - G

A- T


C semi conservative replication
C. Semi-conservative replication

  • Each new DNA molecule

    contains

    one old strand

    &

    one new strand

?’s 4-6




DNA vs. RNA

?’s 7-12


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