What does regeneration mean in developmental biology?
Q: What does regeneration mean in developmental biology?
A: Regeneration means that an organism regrows a lost part, so that the original function is restored.
Q: Do all organisms have the ability to regenerate equally?
A: No, the ability to regenerate differs in different groups.
Q: What is an example of an animal that can regenerate severed limbs?
A: Newts can regenerate severed limbs.
Q: What are the two major steps in limb regeneration in newts?
A: The first step is de-differentiation of adult cells into a stem cell state similar to embryonic cells, and the second step is development of these cells into new tissue more or less the same way it developed the first time.
Q: Why can simpler animals like flatworms regenerate?
A: Simpler animals like flatworms can regenerate because the adults retain clusters of stem cells in their bodies.
Q: How do clusters of stem cells allow flatworms to regenerate?
A: These stem cell clusters can migrate to damaged parts of the body, then divide and differentiate to provide the missing tissue.
Q: Can mammals regenerate lost limbs?
A: No, mammals cannot regenerate lost limbs.
