English ComprehensionEasyThe author says stem cells used in research are best derived from:Aadult bone marrowBvery early stage embryos created by in vitro fertilizationCcommercial sourcesDskin cellsCheck AnswerAnswerThe correct answer is Option B.Share:WhatsAppTwitter🔗 Copy LinkDetailed SolutionEarly IVF embryos.conceptual solutionEarly IVF embryos.Browse All PYQ PapersTake a Mock Test