Does nanotech have a gender?

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Preparation of Silicon Nanowire Field-effect Transistor for Chemical and Biosensing Applications
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Chris Toumey1

  • 1University of South Carolina NanoCenter, SC, USA. Toumey@mailbox.sc.edu

Nature Nanotechnology
|July 5, 2012
PubMed

Abstract:

Gender is less of an issue in nanotechnology than in other areas of science and technology but, as Chris Toumey explains, public attitudes to nanotech do depend on gender.

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The Y Chromosome Determines Maleness02:19

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The Y chromosome is a sex chromosome found in several vertebrates and mammals, including humans. In addition to 22 pairs of autosomes, the human males have one X chromosome and one Y chromosome. In these organisms, the presence or absence of the Y chromosome determines the development of male traits.
Evolution
Around 300 million years ago, the two sex chromosomes diverged from two identical autosomal chromosomes. Over time, the Y chromosome has lost most of its genes, shrinking in size. Today,...
The Ratio of X Chromosome to Autosomes02:45

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In most organisms, sex is determined by the ratio of X and Y chromosomes. However, in some organisms, such as Drosophila and C.elegans, sex is determined by the ratio of the number of X chromosomes to the number of sets of autosomes. The Y chromosome in Drosophila is active but does not determine sex. It contains genes responsible for the production of sperms in adult flies.  
Normal male Drosophila has a ratio of one X chromosome to two sets of autosomes. In contrast, normal female Drosophila...

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