Question

question 4 tightly-coiled, rod-like structures of dna and proteins are called ______ . blank 1 blank 1 add your answer

Explanation:

In cell biology, during cell division, DNA (along with associated proteins like histones) condenses into tightly - coiled, rod - like structures. These structures are known as chromosomes. The DNA is normally in a more relaxed, thread - like form called chromatin, but when the cell is preparing to divide, the chromatin undergoes condensation to form chromosomes which are easily visible under a microscope and are rod - shaped and tightly coiled.

Answer:

chromosomes