Unwound protein and chromosome complexes inside the nucleus are called:

1. Chromosomes are not always in their tightly condensed form. 2. For most of the cell's life the DNA is unwound and bound to protein. 3. These unwound protein-chromosome complexes are called chromatin. 4. Chromatin describes that material both when condensed and when decondensed. _Source: OpenStax Biology for AP(R) Courses (CC BY 4.0), Ch 4 'Cell Structure', sections 4.1-4.6_