Subject: I want to know about the cell differentiation takes place in the body.

Is at the time of the differentiation always recombination done like 
recombination/gene rearrengement done at the time of the B-cell(lymphocyte) 
maturation.And if we consider a human two different cells like heart and liver 
cells or any two different cells then it is always that they contains different 
genetic material i.e.if we sequence them then we get observable difference in 
them and if yes then there is no meaning to the human genome sequence and if no 
then what about the transposoncepresent on a human that they can transfer from 
one chromosome to other that meance we can not say that any perticular gene is 
present on the perticular chromosome i.e. all the oncogenes are present on the 
11 th chromosome.And also tell me about B-cell's gene rearrengment for the 
synthesis of the perticular antibody against the perticular antigen . How there 
joining and again distructing is regulated or done.Thank you.And sir please 
tell me specific answer please don't tell that refer this or that sitefor your 
question.Again thank you very much.I hope you would satisfy me.

Re: I want to know about the cell differentiation takes place in the body.