1. Tardigrade
  2. Question
  3. Biology
  4. Every chromosome essentially has a primary constriction or the , on the sides of which disc shaped structures called are present

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Q. Every chromosome essentially has a primary constriction or the ________, on the sides of which disc shaped structures called _____ are present

NTA AbhyasNTA Abhyas 2020Cell : The Unit of Life

Solution:

Each chromosome consists of two chromatids that remain attached at a point called centromere or primary constriction. At centromere two disc-shaped structures are presently known as kinetochore. During cell division spindle fibers attaches to the kinetochore.