Abstract
3.055 billion The number of base pairs in the complete human genome . Researchers filled in the last remaining holes in the human genome using new sequencing technologies. The gaps were largely highly repeating sections associated with regulatory and other functions, not protein-encoding regions (bioRxiv 2021, DOI: 10.1101/2021.05.26.445798 ). <10 kg The mass of all the SARS-CoV-2 in humans as of June 2021. Researchers used the typical viral load in various tissues of those with COVID-19 to estimate that the total mass of the virus at that time was between 100 g and 10 kg ( Proc. Natl. Acad. Sci. U.S.A. 2021, DOI: 10.1073/pnas.2024815118 ). 586 The number of electrons in oganesson tetratennesside , the stable pentatomic molecule that would be made if the periodic table’s heaviest two elements reacted with each other. Researchers used relativistic quantum calculations to predict that this tetrahedral molecule would be stable ( Theor. Chem.
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