<prompt> Hematopoetic stem cell differ from progenitor stem cell in that they canForm terminally differentiated cellsHave a role in bone marrow regenerationProduce growth factorsHave receptors for anchoring proteins  <response>: Ans. b. Have a role in bone marrow regeneration Hematopoietic stem cell differ from progenitor stem cell in that they can have a role in bone marrow regeneration. Progenitor stem cells are committed, dont have capacity of self-renewal and dont have a role in bone marrow regeneration, whereas hematopoietic stem cells have self-renewal capacity and thus, helps in bone marrow regeneration. Progenitor Stem Cells Committed stem cells lose their capacity to self-renewal. They become irreversibly committed i.e. form terminally differentiated cells Ceain hormones or substances regulate them, so that they can proliferate and can undergo maturation. Progenitor stem cells are committed, dont have capacity of selfrenewal and dont have a role in bone marrow regenerations 