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Related Concept Videos

The DNA Helix01:07

The DNA Helix

Deoxyribonucleic acid, or DNA, is the genetic material responsible for passing traits from generation to generation in all organisms and most viruses. DNA is composed of two strands of nucleotides that wind around each other to form a spring-like structure called a double helix. However, the double helix is not perfectly symmetrical. Instead, there are regularly occurring grooves in the structure. The major groove occurs where the sugar-phosphate backbones are relatively far apart. This space...
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Genome Size and the Evolution of New Genes03:21

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While every living organism has a genome of some kind (be it RNA, or DNA), there is considerable variation in the sizes of these blueprints. One major factor that impacts genome size is whether the organism is prokaryotic or eukaryotic. In prokaryotes, the genome contains little to no non-coding sequence, such that genes are tightly clustered in groups or operons sequentially along the chromosome. Conversely, the genes in eukaryotes are punctuated by long stretches of non-coding sequence.
Genome Size and the Evolution of New Genes03:21

Genome Size and the Evolution of New Genes

While every living organism has a genome of some kind (be it RNA, or DNA), there is considerable variation in the sizes of these blueprints. One major factor that impacts genome size is whether the organism is prokaryotic or eukaryotic. In prokaryotes, the genome contains little to no non-coding sequence, such that genes are tightly clustered in groups or operons sequentially along the chromosome. Conversely, the genes in eukaryotes are punctuated by long stretches of non-coding sequence.
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Two structural features of the DNA molecule provide a basis for the mechanisms of heredity: the four nucleotide bases and its double-stranded nature. The Watson-Crick model of double-helical DNA structure, proposed in 1952, drew heavily upon the X-ray crystallography work of researchers Rosalind Franklin and Maurice Wilkins. Watson, Crick, and Wilkins jointly received the Nobel Prize in Physiology or Medicine for their work in 1962. Franklin was, controversially, excluded from the prize for...
DNA as a Genetic Template02:05

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Two structural features of the DNA molecule provide a basis for the mechanisms of heredity: the four nucleotide bases and its double-stranded nature. The Watson-Crick model of double-helical DNA structure, proposed in 1952, drew heavily upon the X-ray crystallography work of researchers Rosalind Franklin and Maurice Wilkins. Watson, Crick, and Wilkins jointly received the Nobel Prize in Physiology or Medicine for their work in 1962. Franklin was, controversially, excluded from the prize for...

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Charles Darwin: genius or plodder?

Adam S Wilkins1

  • 1Wissenschaftskolleg zu Berlin, 14193 Berlin, Germany. wilkins316@btinternet.com

Genetics
|November 26, 2009
PubMed
Summary
This summary is machine-generated.

Charles Darwin

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Area of Science:

  • Scientific history
  • Neurobiology
  • Literary studies

Background:

  • Charles Darwin's significant scientific contributions are undisputed.
  • A debate persists regarding the nature and extent of his intellectual brilliance.
  • His intelligence contrasts with the conventional 'genius' attributed to physicists.

Purpose of the Study:

  • To examine the nature of Charles Darwin's intelligence.
  • To analyze Darwin's unique working style.
  • To re-evaluate criteria for scientific genius.

Main Methods:

  • Analysis of Darwin's working style.
  • Exploration of insights from literary studies.
  • Consideration of findings from neurobiology.

Main Results:

  • Darwin's intelligence and working methods do not diminish his achievements.
  • Conventional criteria for 'genius' may be too narrow and misapplied.
  • Insights from literature and neurobiology offer new perspectives on Darwin's intellect.

Conclusions:

  • Darwin's unique cognitive gifts should be recognized.
  • Reassessing the definition of scientific genius is necessary.
  • Broader criteria can better accommodate diverse forms of scientific creativity.