BIO MISC

BIO MISC - Module 3 Quiz questions & answers. Module 3 Questions 1. Chromosome structure DNA normally exists in the cell as one very long chain. It is like a long piece of string coiled up in the nucleus of the cell. But imagine trying to work with or move a bundle of loosely coiled string. It is difficult to neatly handle it without it getting tangled or tied in knots. If the cell tried to work with its entire DNA strand at once, it might face a similar problem.