Antihistamine drugs fall into two groups-those that block H 1 receptors and act mainly on blood vessels, and those that block H 2 receptors and act mainly on the secretion of acid in the stomach.
Biotechnology. Biotechnology, or genetic engineering, is the process of using living organisms to improve qualities of a plant by such as the plantâs ability to protect itself against damage or improving upon its ability to grow and produce.t allows for the transfer of one, or a few genes that can introduce traits such as better insect and weed control. Biotechnology at Monsanto Biotechnology is just one component of Monsantoâs three-pronged approach to delivering increased yields sustainably.
replication - (genetics) the process whereby DNA makes a copy of itself before cell division. genetic science, genetics-the branch of biology that studies heredity and variation in organisms. biological process, organic process-a process occurring in living organisms.epÂ·liÂ·caÂ·tion. n. 1. a. The act or process of replicating something. b. Biology The process by which genetic material, a single-celled organism, or a virus reproduces or makes a copy of itself. c. In scientific research, the repetition of an experiment to confirm findings or to ensure accuracy.