User talk:143.159.123.40

July 2023
Hello, I'm Grumpylawnchair. An edit that you recently made to Nucleic acid structure seemed to be a test and has been reverted. If you want to practice editing, please use the sandbox. If you think a mistake was made, or if you have any questions, you can leave me a message on my talk page. Thanks! <span style="background-color: black; color: white; padding: 2px 3px 1px 3px; Grumpylawnchair ( talk ) 20:25, 6 July 2023 (UTC)