Would switching a course grade mode to credit/no credit affect grad school application?

[littleberber]

Hi! I'm a senior who is now applying for Chemistry PhD this year. Last year because of the pandemic our school gave us the option to have one class as credit/no credit mode and it wouldn't affect our GPA. I'm a chemistry major and biochem is not required for my major. But because I didn't have any other class to take, I took biochem along with advanced organic and the second semester of p chem. And turns out my professor was really slow at grading and not a great professor, so I ended up putting my biochem class as credit/no credit. I was wondering would this affect my grad school application? Given that biochem is not required for my major and I'm just taking it to explore more fields of chemistry? Any opinions and insights would be appreciated!!

 

P.S.: Just a litte bit background, my GPA is 3.92 and my major GPA is 3.91.