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We reported previously that a Ca2+-ATPase in rat testes and goat spermatozoa could be activated by Ca2+ alone without Mg2+, though it has a lot of similarities with the well known Ca2+, Mg2+-ATPase. Recently, we were successful in isolating the phosphorylated intermediate of the former enzyme under control conditions i.e., in the presence of low concentration of Ca2+ and at low temperature. Increase...
The segment polarity geneswingless (wg) andengrailed (en) have been shown to play important roles in pattern formation at different stages ofDrosophila development in the thoracic imaginai discs. We have studied the patterns of expression of these genes in genital discs from wild type larvae, pupae and pharate adults and also from hetero-allelic mutant combinations of these genes. Our results suggest...
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