Theoretical estimate of the probability for macromolecule formation

We estimate the probability regarding polymerization of a macromolecule which is made of distinct monomers. The lattice model of the random walk has been used to mimic the conformations of an ideal chain in two and three dimensions. It has been shown through analytical estimates that the flexible macromolecules may be easily formed than the stiff macromolecules in two and three dimensions.