Multiple choice Duplicated chromosomes are joined at a point termed centrosome centromere centriole chromatid chromomere Reveal answer Fill a bubble to check yourself B Correct answer Explanation The centromere is the part of a chromosome that links sister chromatids. During mitosis, spindle fibres attach to the centromere via the kinetochore. Centromeres were first defined as genetic loci that direct the behavior of chromosomes.