Question

Under-winding is measured in terms of ____________

(a) Supercoiling

(b) Linking difference

(c) Positive supercoiling

(d) Negative supercoiling

The question was posed to me during a job interview.

I'd like to ask this question from DNA Supercoiling in division Genes and Chromosomes of Biochemistry

Answer 1

Correct answer is (b) Linking difference

For explanation I would say: Under-winding is measured in terms of specific linking difference, σ also called super helical density.