Редактирование: Classification of genes

Thesis: Genes can be divided into separate groups by various features and functions and this helps in analyzing the aging processes.

== Types of classification itself ==
* Flat tree - all classes belong to the same level, no super classes and subclasses.
* Nested tree - several levels of hierarchy.

Nested tree example:
* Nuclear genes
** RNA genes
*** rRNA genes
*** tRNA genes
*** miRNA genes
** Protein genes
*** Protein type1 genes
*** Protein type2 genes
*** ...
* Mitochondrial genes

== Classifications ==
* By sequence similarity ({{abbr|Dayhoff, M. O. 1978, Atlas of sequence and structure. Vol. 5, Suppl. National Biomedical Research Foundation, Silver Spring, Md|Dayhoff, 1978}})
* By protein function
* By location on chromosomes (suggested - denis.s)
* By localization in cell of the end protein (suggested - denis.s)
* By the end product - protein or RNA (suggested - denis.s)

== Articles on genes classification ==

* [https://academic.oup.com/mbe/article/17/12/1879/1059645 A Simple Method for Classifying Genes and a Bootstrap Test for Classifications 12.2000]

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