Which of the following processes would result from a mutation that deactivates a regulatory gene of a repressible operon in an E. coli cell?

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#Question id: 28231

#Unit 5. Developmental Biology

which of the following stem cells play major roles in organisms Such as hydra, axolotl, and zebrafish with high regenerative capabilities?

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#Question id: 28232

#Unit 5. Developmental Biology

which of the following statement about Adult stem cells is incorrect?

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#Question id: 28233

#Unit 5. Developmental Biology

Regulation is highly influenced by the microenvironment that surrounds a stem cell is known as 

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#Question id: 28234

#Unit 5. Developmental Biology

which statement is correct the Principles of stem cell regulation?

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#Question id: 28235

#Unit 5. Developmental Biology

 Principles of stem cell regulation including extracellular mechanism which define the physical and chemical regulation, which of the following statements best describe the main differences between these two mechanism?

a) physical mechanism takes the form of secreted proteins from surrounding cells that influence stem cell & progenitor differentiation through endocrine

b) Chemical mechanisms including Structural & adhesion factors within the extracellular matrix 

c) physical mechanisms including Structural & adhesion factors within the extracellular matrix 

d) chemical regulation of stem cells takes the form of secreted proteins from surrounding cells that influence stem cell & progenitor differentiation through endocrine

TLS Online TPP Program

#Question id: 28236

#Unit 5. Developmental Biology

 One of the mechanism of stem cell regulation is Extracellular mechanisms which involve physical as well as chemical regulation. which of the following prediction is incorrect about the Physical mechanisms ?