In an effort to reduce the number of deaths due to Malaria , Scientist have successfully introduce a gene into mosquitoes. The gene makes the mosquito unable to support the development of the parasite that causes malaria. The technique used to produce this new variety of mosquito is most likely

A. Chromatography
b. Genetic engineering
C. Electrophoresis of genes
D. Selective breeding

B, genetic engineering

You would be correct, boiling water does disinfect contamination.    the property of disinfecting means to kill  germs, bacteria and other pathogens or contamination  that might cause an infection or cause a person to become sickly. a couple methods of disinfecting are using soap, other cleaning supplies or by simply "boiling" the contaminate.  the reason why boiling water disinfects certain attributes is because some cells cannot survive the heat and pressure.