Question

Which of the following is an event which does not occur during anaphase-1?

• A. Spindle fibres pull homologous chromosomes towards the opposite poles of the spindle
• B. The homologous chromosomes break their connection and separate out into two haploid sets or dyads.
• C. One such set is present at each end of the spindle
• D. The process of separation of chromosomes which take place is called disengagement

Answer 1

The correct option is D The process of separation of chromosomes which take place is called disengagement

Disengagement is defined as the process by which each daughter cell gets a single centrosome at the end of the cell division. The centrosome has a pair of orthogonally organized centrioles. So, Option D is incorrect.