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Papers On Genetics & Paleontology
Page 8 of 10
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The Genetic Pathway and Developmental Evolution
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A 7 page discussion of genetic pathways, specifically the direction of the orderly expression of specific gene subsets, a process which is controlled by tissue-specific transcription factors. Specific DNA target sequences are bound by these transcription factors and, in turn, interact with one another on either a cooperative basis or an antagonistic basis to control expression of the gene subsets. This interaction is aided as well by extracellular signaling molecules which both control and are controlled by the transcription factors. Ties these basic observations together with a review of research on species as diverse as Drosophila melanogaster and zebrafish. An additional 2 pages are appended on this paper which identify several references which could be applicable in an expanded review of this subject. Bibliography lists 13 sources.
Filename: PPgenePt.wps
The Great Human Diasporas: Implications of the Work of Luigi Luca Cavilli-Sforza for Theories of Cultural Evolution
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A 5 page discussion of the theories presented in the book The Great Human Diasporas : The History of Diversity and Evolution. Recognizes author Cavilli-Sforza as a renown expert in human genetic diversity. Notes Cavilli-Sforza adds significant contributions to the predominant explanations of cultural evolution. His work in linguistics, for example, has been applied to reconstructing ancient routes of human migration. Additional work in genetics complement such observations to allow Cavilli-Sforza to provide considerable insight to the manner in which culture has evolved alongside the biological aspects of human life. No additional sources are listed.
Filename: PPcltEvo.wps
The Human Genome Project:
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This 16 page paper discusses the Human Genome Project in terms of its history, its purpose and its current status. This report includes graphs and charts which highlight the material covered in this paper. Bibliography lists 3 sources.
Filename: GSGenome.rtf
The Importance of Phylogenetic Relationships in Evolutionary Biology
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A 5 page contention that phylogenetic relationships are a critical component of evolutionary biology. Indeed, it is upon our knowledge of phylogeny which we base much of our theory of evolution. Even in “Origin of Species”, that infamous production of an earlier century which many consider synonymous with the concept of evolution, Darwin relies heavily on his knowledge of phylogeny to assess the characteristics of plants and animals which he observed on his scientific voyage on the “Beagle”. Contends that this is only one example, of the many interrelationships of phylogeny and evolutionary theory which have occurred over time. It, along with the somewhat antiquated concept of ontogeny recapitulating phylogeny, however, illustrates the importance of phylogeny to evolutionary theory. Bibliography lists 3 sources.
Filename: PPphylog.wps
The Lazarus Effect and the ‘Feathers’ of the Longisquama
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This 3 page paper is written in two parts, answering several questions; which of the three commonly accepted explanations is most likely to explain the Lazarus effect, what value or information the Lazarus effect provides when studying the fossil record and what is meant by refugia. The second part of the paper looks at the appendages of Longisquama considers if these are mostly likely to be feathers or scales, the role they may have had and whether it was likely to be the ancestor of bird life.The bibliography cites 7 sources.
Filename: TElazaru.rtf
The Neanderthal Controversy
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This 8 page paper provides an overview of the controversies over the origins of Homo sapien, and the question of whether modern man drove out the Neanderthals or if they interbred. This paper integrate a view of the existing arguments. Bibliography lists 7 sources.
Filename: MHNeande.rtf
The Origins of Homo Sapien
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This 5 page paper considers the arguments regarding the origins of Homo sapien, including the population replacement model, the multiregional replacement model and the genetic replacement model. These three theories are assessed, with a significant concentration placed on the validity of the population replacement model, also known as the Out of Africa model . Bibliography lists 5 sources.
Filename: MHHomoSa.wps
The Phylogenetic Relationships of African Hominids: The Cladistic Verses the Molecular Data Approach
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A 10 page overview of the manner in which phylogenetic relationships are determined. This paper given an outline of both the cladistic approach and the molecular data approach, emphasizing that each has their place in establishing the phylogeny of African hominids. Bibliography lists 9 sources.
Filename: PPphylog.rtf
The Phylum Mollusca
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A 10 page discussion of the phylogeny of the phylum Mollusca. Provides an overview of the major classes of Mollusca including Amphineura, Monoplacophora, Gastropoda, Pelecypoda, Scaphopoda, and Cephalopoda. Outlines common morphological features known as synomorphies and discusses the variations between species. Bibliography lists 10 sources.
Filename: PPmollsk.wps
The Race Against Time: Patenting the Human Genome
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5 pages in
length. Goes over the argument as to why the government needs to
regulate human genome research. This excellent paper gives a
great overview of the entire research and earning potential of
the research on human genetic mapping and why the industry has
lost its focus and needs to be regulated. Bibliography lists 15
sources.
Filename: JGAgenme.wps
The Review of a Scientific Article
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This five-page-paper reviews and discusses an article in which experiments with mice showed that manipulation of a brain receptor can increase the ability to learn and remember things. This points to exciting possibilities in
the field of dementia. Bibliography lists one source.
Filename: CWscires.wps
