The genomes of all retroviruses contain the three genes gag, pol and env.

For sustainable expression of a trangene in the successive generation of a cell line in culture, the ideal gene transfer can be obtained using 

 lentiviral vector 

adenoviral vector 

 plasmid DNA containing the transgene 

only transgenic DNA

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#Unit 3. Fundamental Processes

Each snRNP contains a single snRNA (100-300 nt) and several (20) proteins. The U4 and U6 snRNPs are usually found together as a di-snRNP (U4/U6) particle.

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#Unit 6. System Physiology – Plant

From that point, downward movement is described as acropetal (toward the apex). Movement of auxin from the apex of the root toward the root–shoot junction is also described as basipetal (toward the base).

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#Id: 9147

#Unit 11. Evolution and Behavior

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#Id: 10452

#Unit 4. Cell Communication and Cell Signaling

Philadelphia chromosome generated by a translocation

between chromosomes 22 and 9

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#Unit 13. Methods in Biology

Process of replication in which gap is created by DNase I, filled by klenow fragment and with radioactive dNTPs called as Nick Translation