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.
Definition of Protective covenant. A part of the indenture or loan agreement that limits certain actions a company takes. during the term of the loan to protect the lender's interests. Restriction on a firm to protect bondholders. A bond covenant that specifies certain actions the firm must take. A contractual provision in a bond indenture. A positive covenant requires certain actions, and. a negative covenant limits certain actions.