for instance in humans, the somatic cells include 46 chromosomes which is the diploid wide variety (2n) and each sperm and egg has 23 chromosomes wherein one of them is the sex chromosome.
D. Genetic Engineering
Doesn’t matter if it takes hundreds of years or a couple weeks, if there is an intent to alter the genes of an organism to select for desired traits, it is genetic engineering.
Backup of sewage in the preparation area or a serious pest infestation are hazards or contaminants that are grounds for immediate closure of an operation. A sewer drain backup may be among the most unpleasant experiences one can get as a house owner.