Identify the structure.

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Class 11 Biology Practice Test: Cell The Unit of Life - Nucleus — practice the complete quiz, review flashcards, or try a random question.


Identify the structure.<br /><img src='https://www.fatskills.com/class11science/biology-questions-answers-cell-nucleus-q13.png' alt='Non-staining secondary constrictions of chromosomes apart from centromere' width='227' height='569' />