Which is part of the spindle apparatus?
question 11 options:

aster fibers

centromere

chromatin

nuclear envelope

Aster Fibres  is part of the spindle apparatus

Explanation:

Spindle apparatus is the structure consisting of spindle fibres, the dividing chromosomes and the centrosomes.  The astral rays, or the astral fibres are the spindle fibres that arise from the centrosomes. The word astral means star i.e. radiating from one point.

In the spindle fibres, the centrosomes are the organelles from which the spindle fibres arise. That point when zoomed on, looks like a star in light microscope, from where the spindle fibres are arising. So, astral rays are the part from the spindle apparatus.  

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