Answer: Yes, this sentence does contain a dependent clause and an independent clause.
Step-by-step explanation:
-The dependent clause in the sentence is:
While Mario talked to Jennifer,
This is a dependent clause because it does not express a complete thought. This means it can't stand on its own and is therefore dependent.
-The independent clause in this sentence is:
Jorge talked to Jose.
This is an independent clause because it contains a subject and a verb and expresses a complete thought and can stand on its own.