Cooking tips for tender beef. When cooking beef, keeping it tender and juicy is of utmost importance - and it really isn't that difficult. With the following cooking tips, you'll have perfectly cooked beef every time. Cooking tip #1: Understand your cuts.
Supplement. In cell biology, a tetrad pertains to the structure formed by the synapsis of homologous chromosomes during the prophase I of meiosis. Word origin: Greek tetras, tetrad-. Synonym: bivalent. Related term: 1  Fallots tetrad.
A synapsis occurs when the chromosomes form a pair of sister chromatids during the first phase of meiosis, which is referred to as prophase I. These sister chromatids connect to one another through RNA and protein combinations. During this process, they interlock and coil together. This is the crossover process.