Spindle fibres are made of (1) Actin protein and RNA (2) Cellulose and RNA (3) Tubulin protein and RNA (4) Both A and C

Answer: (3)

A number of fibres appear between the two daughter centrioles, which are called the spindle fibres. Spindle fibers are the cellular structures that are used predominantly during cell division. It forms a protein structure that aids in the division of cells. They ‘re often referred to as mitotic spindles. It consists of 97% tubulin protein, and 3% RNA. The polymeric tubulin is formed by alpha and beta loop. The chromosomal spindle fibers bind to kinetochore and separate the cell.

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