dna replication - houston independent school district replication replication = dna copies itself...
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![Page 1: DNA Replication - Houston Independent School District Replication Replication = DNA copies itself exactly 9(Occurs within the nucleus) Any mistake in copying = mutation DNA mutation](https://reader031.vdocuments.us/reader031/viewer/2022020315/5ad819757f8b9af9068d0f5a/html5/thumbnails/1.jpg)
DNA ReplicationDNA Replication
![Page 2: DNA Replication - Houston Independent School District Replication Replication = DNA copies itself exactly 9(Occurs within the nucleus) Any mistake in copying = mutation DNA mutation](https://reader031.vdocuments.us/reader031/viewer/2022020315/5ad819757f8b9af9068d0f5a/html5/thumbnails/2.jpg)
DNA ReplicationDNA Replication
Replication = DNA copies itself Replication = DNA copies itself exactlyexactly(Occurs within the nucleus)(Occurs within the nucleus)
Any mistake in copying = Any mistake in copying = mutationmutation
DNA mutation = chromosomal mutation DNA mutation = chromosomal mutation
![Page 3: DNA Replication - Houston Independent School District Replication Replication = DNA copies itself exactly 9(Occurs within the nucleus) Any mistake in copying = mutation DNA mutation](https://reader031.vdocuments.us/reader031/viewer/2022020315/5ad819757f8b9af9068d0f5a/html5/thumbnails/3.jpg)
A. Basic Facts of DNA A. Basic Facts of DNA ReplicationReplication
1. 1. Complementary Complementary base pairingbase pairing
makes makes replication possiblereplication possible
C C --
GG
A A --
TT
![Page 4: DNA Replication - Houston Independent School District Replication Replication = DNA copies itself exactly 9(Occurs within the nucleus) Any mistake in copying = mutation DNA mutation](https://reader031.vdocuments.us/reader031/viewer/2022020315/5ad819757f8b9af9068d0f5a/html5/thumbnails/4.jpg)
A. Basic Facts of DNA A. Basic Facts of DNA ReplicationReplication
2. One side of DNA 2. One side of DNA molecule is molecule is
a a templatetemplate
for for making making
thetheother side other side (strand)(strand) ?’s 1-3
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B. Process of DNA ReplicationB. Process of DNA Replication
1.1. Uncoil & unzip DNA moleculeUncoil & unzip DNA molecule
Enzyme (Enzyme (--asease)) breaks breaks
weakweak
Hydrogen BondHydrogen Bond
between basesbetween bases
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B. Process of DNA ReplicationB. Process of DNA Replication
2. 2. Enzyme brings in complementary NEnzyme brings in complementary N--basesbases
DNA Polymerase
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B. Process of DNA ReplicationB. Process of DNA Replication
3. 3. Insert NInsert N--basesbases
DNA Replication TutorialDNA Replication Tutorial
(Go here for on(Go here for on--youryour--own learning/review)own learning/review)
trc.ucdavis.edu/.../week5/06dnareplication.html
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Replication Replication MoovieMoovie
C C -- GGAA -- TT
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C. C. SemiSemi--conservative replicationconservative replication
1.1. Each new DNA Each new DNA molecule molecule contains contains
one old strandone old strand& &
one new strandone new strand
?’s 4-6
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DNA vs. RNADNA vs. RNA
DNADNA RNARNA
Sugar = Sugar = deoxyribosedeoxyribose Sugar = Sugar = riboseribose
DoubleDouble--stranded stranded moleculemolecule
SingleSingle--stranded stranded moleculemolecule
ThymineThymine bonds with bonds with adenineadenine
UracilUracil instead of thymineinstead of thymine
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DNA vs. RNADNA vs. RNA
DNADNA RNARNA
Nuclear Nuclear DNADNAMitochondrialMitochondrial DNADNAChloroplastChloroplast DNADNA
mRNAmRNA = messenger= messengertRNAtRNA = transfer= transfer
rRNArRNA = ribosomal= ribosomal
Nuclear DNA Nuclear DNA never never leaves the nucleusleaves the nucleus
Assembled in nucleus, Assembled in nucleus, moves to cytoplasmmoves to cytoplasm((leaves the nucleusleaves the nucleus))
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DNA DNA vs. vs. RNARNA
?’s 7-12