A coordinating conjunction is your basic conjunction that joins two parts of a sentence — maybe just two words, maybe two whole independent clauses. (educationworld.com)
Both contain subjects and verbs, but only independent clauses can stand alone as a sentence. (thoughtco.com)
Comma splices: The third part of our «Comma Trilogy,» a comma splice is when you use commas to join independent clauses. (authorhouse.net)