User talk:Markjohn123123123123

January 2023
Please stop. If you continue to add inappropriate external links to Wikipedia, as you did at Directionality (molecular biology), you may be blocked from editing. It is considered spamming and Wikipedia is not a vehicle for advertising or promotion. Because Wikipedia uses nofollow tags, additions of links to Wikipedia will not alter search engine rankings. —*Fehufangą (✉ Talk · ✎ Contribs) 21:49, 5 January 2023 (UTC)  You have been blocked indefinitely from editing for abuse of editing privileges. If you think there are good reasons for being unblocked, please read the guide to appealing blocks, then add the following text below the block notice on your talk page:. Materialscientist (talk) 07:16, 11 January 2023 (UTC)