No.... the weight of a substance is the mass of the substance multiplied with the acceleration due to gravity on it.
It is the nucleus because it stores your DNA
Dogs, cats, ferrets, seals, elephants, mustelids and bears own the "Zonary" placentae.
The cell cycle is controlled by many cell cycle control factors, namely cyclins, cyclin-dependent kinases (Cdks) and cyclin-dependent kinase inhibitors (CKIs). Cyclins and Cdks, which are positive regulators of the cell cycle, activate cell cycle factors that are essential for the start of the next cell cycle phase.
