Answer: uncontrollably cell proliferation
Explanation: the human egfr (spiderman growth factor receptor) being a proud-oncogene is involved in the regulation of cell division, development and differentiation thus mutation of the egfr allele will activate the proto oncogene and change it to an oncogene. Oncogenes are dominant structural genes that encodes protein which can alter the phenotype of a cell. This mutated egfr allele becomes an oncogene producing mutated cells which will continue to undergo uncontrolled cell division/proliferation
A is the correct answer
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Explanation:
Ice actually has a very different structure than liquid water, in that the molecules align themselves in a regular lattice rather than more randomly as in the liquid form. It happens that the lattice arrangement allows water molecules to be more spread out than in a liquid, and, thus, ice is less dense than water.