🌐EnglishEnglishDeutschEspañolFrançaisNederlandsPortuguêsSvenskaالعربيةفارسی한국어中文日本語EntityQ1570701· pop 15· linked from 99 articlesHaldane's ruleobservation in evolutionary biologyConnectionsXY sex-determination systemEntityJ.B.S. HaldaneEntityCategoriesBiological rulesEvolutionary biologyHybridisation (biology)Rules of thumbWorks by J. B. S. Haldane