slides lecture 10 chapter 21 and 23

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Unformatted text preview: General
Biology
01:119:101‐Fall
2011
 Dr.
Monica
Torres
 Outline Lecture
10

 Part
I:
The
origin
and
evolutionary
history
of
life
–Chapter
21
 
‐
Earth.
Conditions
on
surface
of
Earth
and
Chemical
Evolution
 Hypothesis
 
‐
Origin
of
small
organic
molecules.
Pre‐biotic
soup
hypothesis
 and
Miller
and
Hurley
experiment.
Iron‐sulfur
world
hypothesis.

 ‐
Protobiont
and
Microspheres
 ‐
RNA
world
hypothesis
and
origin
of
DNA
 ‐
First
cells:
prokaryotic
cells
 ‐ First
autotrophic
cells
and
Cyanobacteria
 ‐ ‐
Origen
of
Eukaryotic
cells
and
serial
endosymbiosis
hypothesis
 General
Biology
01:119:101‐Fall
2011
 Dr.
Monica
Torres
 Part
II:
Understanding
diversity:
Systematics­
Chapter
23 ‐
Biodiversity
 ‐
Systematics
 ‐
Molecular
systematics
 ‐
Taxonomy
 ‐
Binomial
system
 ‐ Taxon
 ‐ Classification
 ‐
Kingdom
classification
 ‐
Domain
classification
 ‐
Phylogenetic
tree,
cladogram,
clade
and
node.
 General
Biology
01:119:101‐Fall
2011
 Dr.
Monica
Torres
 The Origin and Evolutionary History of Life Chapter 21 General
Biology
01:119:101‐Fall
2011
 Dr.
Monica
Torres
 Prebiotic
Soup
Hypothesis
 •  Miller
and

Urey
experiment

 Fig. 21-2, p. 448 General
Biology
01:119:101‐Fall
2011
 Dr.
Monica
Torres
 Microspheres 
 Fig. 21-3, p. 449 General
Biology
01:119:101‐Fall
2011
 Dr.
Monica
Torres
 The
RNA
world 
 RNA -How did DNA evolved? DNA RNA PROTEINS DNA mRNA PROTEINS Stromatolites 
 Major Episodes in the History of Life General
Biology
01:119:101‐Fall
2011
 Dr.
Monica
Torres
 Single-celled eukaryotic organisms 2.2 billion years ago. Oxygen production 2.5 billion years ago Prokaryotes 3.5 billion years ago. Earth was formed 4.5 billion years ago. General
Biology
01:119:101‐Fall
2011
 Dr.
Monica
Torres
 Cyanobacteria
and
Oxygen 
 uni-frankfurt.de General
Biology
01:119:101‐Fall
2011
 Dr.
Monica
Torres
 Origin
of
Eukaryotic
Cells 
 Serial endosymbiosis Fig. 21-8, p. 454 General
Biology
01:119:101‐Fall
2011
 Dr.
Monica
Torres
 Understanding diversity: Systematics Chapter 23 Classification
of
Corn 
 Table 23-1, p. 483 Domains
and
Kingdoms 
 Table 23-2, p. 486 The
Three
Domains 
 Tree
of
life 
 ...
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