Yeast, a cellular model. Yeast is a simple living being that functions in practically the same way as human cells. It is an historical subject of fundamental research to understand cellular and genetic phenomena. It is a representative model of all eukaryotic cells.
Covenant. An agreement, contract, or written promise between two individuals that frequently constitutes a pledge to do or refrain from doing something. The individual making the promise or agreement is known as the covenantor, and the individual to whom such promise is made is called the covenantee.
Save. Jupiterimages/Comstock/Getty Images. A land covenant is a contract that runs with the land when you purchase it. Examples of land covenants are requirements to use the land for only residential purposes, building the house with a certain setback from the street, or not paint the front door a certain color.heck local land surveys to confirm that your land is within the boundaries of the development governed by the covenant. If there is any doubt, hire an attorney to confirm that the covenant applies. Find out the procedures in your development for requesting an exception to covenants.