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User:ReeseLanger/sandbox

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Introduction

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This is my sandbox page. I'm using this to get practice with Wiki as well as to prepare for writing an article. It will allow me to work out ideas!!!

5 Pillars of Wikipedia

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Pillar 1

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  1. 1 Wikipedia is an online encyclopedia

Pillar 2

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  1. 2 Wikipedia has a neutral point of view[1]

Pillar 3

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  1. 3 Wikipedia is free

Pillar 4

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  1. 4 Respect others

Pillar 5

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  1. 5 There isn't a handbook of set rules[2]

Trisomy 21

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Trisomy twenty one better known as down syndrome is a condition that results from the presence of an extra copy or part of a copy of chromosome twenty one. Its the result of an error during cell division called non-disjunction. The risk of a baby being born with down syndrome increases with the mothers age, although what causes this correlation is still in question.[3] Ninety percent of chromosome tweenty one trisomy was maternal, compared to only four percent being paternal. [4] It is believed that telomere length attrition may be associated with the occurance of non-disjunction of chromosome twenty one during the stages of meiosis I and meiosis II. [3]


References

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  1. ^ https://en.wikipedia.org/wiki/Wikipedia:Neutral_point_of_view
  2. ^ https://en.wikipedia.org/wiki/Wikipedia:Ignore_all_rules
  3. ^ a b ["Telomere length is associated with types of chromosome 21 nondisjunction: a new insight into the maternal age effect on Down syndrome birth". April 12, 2010. PMID 20063167. {{cite journal}}: Cite journal requires |journal= (help)
  4. ^ "Trisomy 21: Fifty Years Between Medicine and Science". PMID 20345276. {{cite journal}}: Cite journal requires |journal= (help)