Question

Kinetochore is

• A. Granule within centromere
• B. Surface of centromere
• C. Constriction near chromosome end
• D. End of chromosome

Answer 1

Answer: (B)

Surface of centromere

• The centromere is the lighter staining region on the chromosome of a cell which appears as a constriction.
  
• They are also known as a primary constriction or kinetochore.
• The kinetochore is a proteinaceous structure that assembles at the surface of the centromere which forms the site for binding of spindle fibres during cell division.
  
• So, the correct answer is 'Surface of centromere'.