noun, Genetics. 1. any of several forms of a gene, usually arising through mutation, that are responsible for hereditary variation.
For example: 1  To insert the copyright symbol, press Ctrl+Alt+C. 2  To insert the trademark symbol, press Ctrl+Alt+T. 3  To insert the registered trademark symbol, press Ctrl+Alt+ R.
To add symbols manually, click the Insert tab, then click Symbol in the Symbols group and then, if the copyright, trademark or registered symbol you want isn't showing, click More Symbols. Then select Special Characters where all three should be listed.