TLS Online TPP Program

#Question id: 18744


What is the disadvantage of amplification of using PCR over natural cloning?

#Unit 13. Methods in Biology
  1. In PCR, there is no proof reading activity
  2. In PCR, small fragments can’t be amplified
  3. There is an A incorporated in PCR products, which makes cloning difficult
  4. PCR takes more time as compared to natural cloning
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TLS Online TPP Program

#Question id: 28232

#Unit 5. Developmental Biology

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

TLS Online TPP Program

#Question id: 28233

#Unit 5. Developmental Biology

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

TLS Online TPP Program

#Question id: 28234

#Unit 5. Developmental Biology

which statement is correct the Principles of stem cell regulation?

TLS Online TPP Program

#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 ?

TLS Online TPP Program

#Question id: 28237

#Unit 5. Developmental Biology

One of the regulation of extracellular mechanism is chemical regulation of stem cells takes the form of secreted proteins from surrounding cells that influence stem cell through signals, these Chemical signals maintain the stem cell in which state?