Match List I with List II regarding the structure of a chromosome: List I List II A Centromere I Non-staining region present at a constant location B Kinetochore II Small fragment-like appearance on some chromosomes C Secondary constriction III Disc-shaped structures on the sides of primary constriction D Satellite IV Structure that holds two chromatids of a chromosome together Choose the correct answer from the opti

Step-by-step solution

Centromere is the primary constriction that holds the two sister chromatids of a chromosome together. Thus, A matches with IV. Kinetochores are disc-shaped structures present on the sides of the primary constriction (centromere) where spindle fibres attach during cell division. Thus, B matches with III. Secondary constriction is a non-staining region present at a constant location on some chromosomes. Thus, C matches with I. Satellite is the small fragment-like appearance of the chromosome located beyond the second