Electrophoresis Equipment. Electrophoresis equipment applies an electric charge to molecules, causing them to migrate towards their oppositely charged electrode. The technique is found in all research and clinical laboratories utilizing DNA and protein applications, and is divided into gel and capillary techniques.lectrophoresis Equipment. Electrophoresis equipment applies an electric charge to molecules, causing them to migrate towards their oppositely charged electrode. The technique is found in all research and clinical laboratories utilizing DNA and protein applications, and is divided into gel and capillary techniques.
primary spermatocyte a diploid cell that has derived from a spermatogonium and can subsequently begin meiosis and divide into two haploid secondary spermatocytes. secondary spermatocyte one of the two haploid cells into which a primary spermatocyte divides, and which in turn gives origin to spermatids.
1 The first comprises the cells from the spermatogonium up to and including the secondary spermatocyte and is termed spermatocytogenesis.  The second one comprises the differentiation/maturation of the sperm cell, starting with the spermatid phase and is termed spermiogenesis (or spermiohistogenesis).