Microtubules are one of the components of the cytoskeleton.
Microtubules typically radiate outwards from the centre of the cell; a place called an MTOC or microtubule organizing centre. They are involved in kinetichore and spindle formation during mitosis. On...
Microtubules, being part of the cytoskeleton... help a cell maintain its shape.
it means to get in a group or group together. for more information go to Dictionary.com
Polypeptides are chains of amino acids.