In some chromosomes, a non-staining region at a constant location gives the appearance of a small fragment beyond it. Identify the name of this small fragment and the specific structural feature it is associated with, respectively.

Step-by-step solution

Some chromosomes have non-staining secondary constrictions at a constant location. This secondary constriction gives the appearance of a small fragment beyond it, which is called the satellite. The kinetochore is a disc-shaped structure present at the primary constriction (centromere) and serves as the site of spindle fibre attachment. Telomeres are the terminal ends of chromosomes, not the fragment formed by a constriction. Answer: Satellite and Secondary constriction