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The Flow of Genetic Information

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Presentation on theme: "The Flow of Genetic Information"— Presentation transcript:

1 The Flow of Genetic Information
Figure 8.2

2 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 Figure 8.3b

3 DNA Replication Step 1:

4 DNA Replication Step 2:

5 DNA Replication Step 3:

6 Semiconservative Replication
Figure 8.3a

7 The Process of Transcription
Figure 8.7

8 The Process of Transcription
Figure 8.7

9 The Genetic Code Figure 8.8

10 The Process of Translation
Figure 8.9

11 The Process of Translation
Figure 8.9

12 The Process of Translation
Figure 8.9

13 The Process of Translation
Figure 8.9

14 The Process of Translation
Figure 8.9

15 The Process of Translation
Figure 8.9

16 The Process of Translation
Figure 8.9

17 The Process of Translation
Figure 8.9

18 Simultaneous Transcription & Translation
Figure 8.10

19 Genetic Recombination
Vertical gene transfer: Occurs during reproduction between generations of cells. Horizontal gene transfer: The transfer of genes between cells of the same generation.

20 Genetic Transformation
Figure 8.24

21 Bacterial Conjugation
Figure 8.26

22 Conjugation in E. coli Figure 8.27a

23 Conjugation in E. coli Figure 8.27b

24 Conjugation in E. coli Figure 8.27c

25 Transduction by a Bacteriophage
Figure 8.28

26 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


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