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What is the difference between astral rays and spindle fibres?

Answer 1

Spindle fibre #-># a cellular formatin which consists of microtubules, it is formed between two centrioles that are on cellular poles
Atral ray/ astral spindle fibre #-># a type of microtubule which is part of the cellular spindle fibre system

Spindle fibre is a cellular bipolar fibrillar structure constructed by proteins, myosin and actin. Microfilaments made from these proteins bind to the centromeres of the chromosomes. This allows chromosomes to separate and to be part of the new cellular material.

Astral spindle fibres/ rays are created around the centrioles in the cell and are bound to the cell membrane. It is considered that the role of these microtubules is to separate chormosomes to cell poles with the help of spindle fibres. The second role is to ensure the position of centriols in the cell.

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Answer 2

Isabella Anderson

Spindle fibers, made of microtubules, are in charge of chromosome movement and separation during mitosis. Astral rays are microtubule arrays that radiate from centrosomes during cell division, assisting in spindle formation.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.