Questions: LEARNING OBJECTIVE: Illustrate the structure and replication of DNA. When considering order or progression of compactness, which of the following is the most compact and coiled form of DNA? a.) Chromatin b.) DNA Polymerase c.) Chromosome d.) Nucleosome

The answer is the third one (c): Chromosome.

Explanation for each option: a.) Chromatin - This is a less compact form of DNA, consisting of DNA wrapped around histone proteins, but it is not the most compact form. b.) DNA Polymerase - This is an enzyme involved in the replication of DNA, not a form of DNA itself. c.) Chromosome - This is the most compact and coiled form of DNA, especially during cell division when DNA is tightly packed to ensure proper segregation. d.) Nucleosome - This is a structural unit of chromatin, consisting of a segment of DNA wound around a core of histone proteins, but it is not as compact as a chromosome.

Summary: The most compact and coiled form of DNA is the chromosome.