Beta cells in the pancreas and human skin cells
both contain the insulin gene. the beta cells can
make insulin; however, skin cells cannot. which
process is responsible for this gene being
expressed in one cell type and not in another
cell type?
(1) mitosis (3) differentiation
(2) replication (4) meiosis

Graded assignment lab report answer the questions below. which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.