Basketball the basketball is also regulated. For men, the official ball is in circumference (size 7, or a "295 ball") and weighs 22 oz (623.69 grams). If women are playing, the official basketball size is in circumference (size 6, or a "285 ball") with a weight of 20 oz (567 grams). In 3x3, a formalized version of the halfcourt 3-on-3 game, a dedicated ball with the circumference of a size 6 ball but the weight of a size 7 ball is used in all competitions (men's, women's, and mixed teams). The ball may be advanced toward the basket by being shot,
Molecular-weight size marker When running RNA markers and RNA samples on a gel, it is important to prevent nuclease contamination, as RNA is very sensitive to ribonuclease (RNase) degradation through catalysis. Thus, all materials to be used in the procedure must be taken into consideration. Any glassware that is to come into contact with RNA should be pretreated with diethylpyrocarbonate (DEPC) and plastic materials should be disposable. One of the most common uses for molecular-weight size markers is in gel electrophoresis. The purpose of gel electrophoresis is to separate proteins by physical or chemical properties, which include charge, molecular size, and pH.< When