Radical 29

Radical 29 or radical again meaning "and", "again" or "right hand" is one of the 23 Kangxi radicals composed of two strokes.
In the Kangxi Dictionary, there are 91 characters to be found under this radical.
又 is also the 24th indexing component in the Table of Indexing [Chinese Character Components] predominantly adopted by Simplified Chinese dictionaries published in mainland China.

Evolution

The radical character 's ancient form is a pictogram of a right hand from which the modern Chinese character was derived. Though 又 as a modern Chinese character no longer represents the meaning of "right", the implication of "hand" is preserved in some Chinese characters that fall under radical 29.

As an independent sinogram it is a Jōyō kanji, or a kanji used in writing the Japanese language. It is a secondary school kanji.