The Dark Tetrad, also known as the Dark Quad, is a set of interrelated negative personality features: narcissism, psychopathy, Machiavellianism, and sadism. The term is an expansion of the idea of ...

Allopolyploids are common in natural ecosystems (Grant, 1981). They arise as a result of distant hybridization (and chromosome doubling) between related species containing different sets of related, ...

BARD Santner Investors (Private) Limited, a Zimbabwe registered asset management firm, has been appointed as the new asset manager for three unit trusts – Tetrad Gold Fund, Gross Income Fund ...

Table 1. Summarizing overview of characteristic life cycle events of five evolutionary lineages of the order Piroplasmida (based on Schreeg et al., 2016). In this review we provide a comprehensive ...

The other type of cell division is called meiosis. Find out more about meiosis in this study guide and learn the difference between mitosis and meiosis. BBC Bitesize has quizzes and questions to ...