EntityQ3145079· pop 5· linked from 29 articlesHereditySign in to saveshort story by Isaac AsimovConnectionsIsaac AsimovEntityEarthConceptMarsEntityshort storyEntityscience fictionEntityGanymedeEntitytwinEntityFrederik PohlEntityJohn W. CampbellEntityAnalog Science Fiction and FactEntitynature versus nurtureEntityInternet Speculative Fiction DatabaseEntitytwin study methodEntityBlind AlleyEntityMother EarthEntityThe Early AsimovEntityThiotimolineEntityThe HazingEntityDeath SentenceEntityHistoryEntityCategories1941 short storiesShort stories by Isaac AsimovShort stories set on MarsWorks originally published in Astonishing Stories