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TLS Online TPP Program

#Question id: 23679

Which is not an important feature of site-directed mutagenesis of cloned DNA?

#Unit 13. Methods in Biology
  1. It can be used to introduce point mutations.
  2. It is faster than the complete in vitro synthesis of mutant genes.
  3. It can be used to exponentially amplify the amount of DNA in a sample.
  4. It allows for easy screening of transformants by using labeled oligonucleotides.
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TLS Online TPP Program

#Question id: 1707

#Unit 4. Cell Communication and Cell Signaling

The thoracic duct:
TLS Online TPP Program

#Question id: 1708

#Unit 4. Cell Communication and Cell Signaling

When antigen reaches a lymph node in a primed animal:
TLS Online TPP Program

#Question id: 1709

#Unit 4. Cell Communication and Cell Signaling

What are the specialized cell type involved in the entry of lymphocytes into lymph nodes called?
TLS Online TPP Program

#Question id: 1710

#Unit 4. Cell Communication and Cell Signaling

The very late antigen (VLA) molecules are:
TLS Online TPP Program

#Question id: 1711

#Unit 4. Cell Communication and Cell Signaling

On entering a germinal center, the primary B-blasts grow exponentially to form which cell type in the dark zone?
TLS Online TPP Program

#Question id: 1712

#Unit 4. Cell Communication and Cell Signaling

The tingible bodies inside germinal center macrophages are: