Question

Why does DNA need to be coiled?

Answer 1

If you took DNA and stretched it out, it's actually like thousands of feet long and it has to fit inside your cell on a microscopic level so it's tightly packed and folded back in on itself because it's the only way it would fit. In addition, it contains a lot of letters, 3 billion base pairs.

Answer 2

DNA molecules carry genetic instructions for our cells. Most of the time that DNA is tightly coiled around proteins. A new study shows that the coiled DNA acts much like the string on a yo-yo. And that's good, because by being rolled up, each cell can store a lot of instructions

Step-by-step explanation: