copyright © 2010 pearson education, inc. figure 8.2 the flow of genetic information

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Copyright © 2010 Pearson Education, Inc. Figure 8.2 The Flow of Genetic Information

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Copyright © 2010 Pearson Education, Inc.Figure 8.2

The Flow of Genetic Information

Copyright © 2010 Pearson Education, Inc.Figure 8.3b

DNA

Polymer of nucleotides: Adenine, thymine, cytosine, and guanine

Double helix associated with proteins

"Backbone" is deoxyribose-phosphate

Strands are held together by hydrogen bonds between AT and CG

Strands are antiparallel

Copyright © 2010 Pearson Education, Inc.

DNA Replication Step 1:

Copyright © 2010 Pearson Education, Inc.

DNA Replication Step 2:

Copyright © 2010 Pearson Education, Inc.

DNA Replication Step 3:

Copyright © 2010 Pearson Education, Inc.Figure 8.3a

Semiconservative Replication

Copyright © 2010 Pearson Education, Inc.Figure 8.7

The Process of Transcription

Copyright © 2010 Pearson Education, Inc.Figure 8.7

The Process of Transcription

Copyright © 2010 Pearson Education, Inc.Figure 8.8

The Genetic Code

Copyright © 2010 Pearson Education, Inc.Figure 8.9

The Process of Translation

Copyright © 2010 Pearson Education, Inc.Figure 8.9

The Process of Translation

Copyright © 2010 Pearson Education, Inc.Figure 8.9

The Process of Translation

Copyright © 2010 Pearson Education, Inc.Figure 8.9

The Process of Translation

Copyright © 2010 Pearson Education, Inc.Figure 8.9

The Process of Translation

Copyright © 2010 Pearson Education, Inc.Figure 8.9

The Process of Translation

Copyright © 2010 Pearson Education, Inc.Figure 8.9

The Process of Translation

Copyright © 2010 Pearson Education, Inc.Figure 8.9

The Process of Translation

Copyright © 2010 Pearson Education, Inc.Figure 8.10

Simultaneous Transcription & Translation

Copyright © 2010 Pearson Education, Inc.

Vertical gene transfer: Occurs during reproduction between generations of cells.

Horizontal gene transfer: The transfer of genes between cells of the same generation.

Genetic Recombination

Copyright © 2010 Pearson Education, Inc.Figure 8.24

Genetic Transformation

Copyright © 2010 Pearson Education, Inc.Figure 8.26

Bacterial Conjugation

Copyright © 2010 Pearson Education, Inc.Figure 8.27a

Conjugation in E. coli

Copyright © 2010 Pearson Education, Inc.Figure 8.27b

Conjugation in E. coli

Copyright © 2010 Pearson Education, Inc.Figure 8.27c

Conjugation in E. coli

Copyright © 2010 Pearson Education, Inc.Figure 8.28

Transduction by a Bacteriophage

Copyright © 2010 Pearson Education, Inc.

Plasmids

Conjugative plasmid: Carries genes for sex pili and transfer of the plasmid

Dissimilation plasmids: Encode enzymes for catabolism of unusual compounds

R factors: Encode antibiotic resistance