Question
Biology Question on cell cycle and cell division
At metaphase chromosomes are attached to the spindle fibres by their
A
Satellites
B
Kinetochores
C
Secondary constrictions
D
Centromeres
Answer
Kinetochores
Explanation
Solution
The key feature of metaphase is the attachment of spindle fibres to kinetochores of chromosomes. Kinetochores are disc shaped structures at the surface of the centromeres. These structures serve as the sites of attachment of spindle fibres to the chromosomes that are moved into position.