Final answer:
Telomeres are found in eukaryotic cells and are false to be characteristic of prokaryotic cells, which have a single circular chromosome.
Step-by-step explanation:
The statement that telomeres are usually found in both eukaryotic and prokaryotic cells is False. Telomeres are distinct regions at the ends of linear chromosomes that protect the chromosome from deterioration, and they are characteristic of eukaryotic cells. Prokaryotes, on the other hand, typically possess a single circular chromosome that does not require telomeres. In eukaryotic cells, DNA is organized into multiple linear chromosomes found in the nucleus and wrapped into a structure with histone proteins called chromatin. Prokaryotic cells have a simpler structure where DNA is located in the nucleoid region without a surrounding nuclear membrane and without telomeres.