At metaphase, chromosomes are attached to the spindle fibres by their:

Options

(a) satellites
(b) secondary constrictions
(c) kinetochores
(d) centromere

Correct Answer:

kinetochores

Explanation:

Kinetochores are large protein complexes that bind the centromeres of chromosomes to the microtubules of mitotic spindle fibres during metaphase in the cell cycle.