The cytoskeleton is made of three types of protein fibers: , which serve to support the cell itself; , which serve to support the nucleus and plasma membrane; and , which serve to maintain the shape of the cell and aid in organelle movement.

The cytoskeleton is made of three types of protein fibers: actin filaments, which serve to support the cell itself; intermediate filaments, which serve to support the nucleus and plasma membrane; and microtubules, which serve to maintain the shape of the cell and aid in organelle movement.

Explanation:

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the offspring would all be white. if the parents are both white flowers then they have the genotype rr, which when crossed results in an all white punnet square.