1970s Topps on the back was in a different typeface. The Burger King set featured 22 cards plus a checklist card. Several cards reflected players changing teams, most notably Pete Rose (Phillies) and Tommy John (Yankees). During the 1970s Topps issued cards featuring the two professional basketball leagues active at the time, the American Basketball Association (ABA) and the National Basketball Association (NBA) until they merged in 1976. Base set 264 cards (NBA/ABA) Size: 2.5 × 3.5 inches Base set 264 cards (NBA/ABA) Size: 2.5 × 3.5 inches Base set 144 cards (NBA) Size: 3⅛ × 5¼ inches. Base set 132 cards
Molecular-weight size marker separating based on size, the ideal method is SDS-PAGE or polyacrylamide gel electrophoresis and molecular-weight size markers are the appropriate standards to use. Gels can vary in size. The number of samples to be run will determine the appropriate gel size. All gels are divided into lanes that run parallel through the gel. Each lane will contain a specific sample. Typically, molecular-weight size standards are placed in an outer lane. If a gel has a particularly high number of lanes, then multiple ladders may be placed across the gel for higher clarity. Proteins and standards are pipetted on the gel