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TLS Online TPP Program

#Question id: 16145

 Which line is not true for follicular dendritic cells?

#Unit 4. Cell Communication and Cell Signaling
  1. follicular dendritic cells do not arise in bone marrow and have completely different functions from those described for the dendritic cells.
  2. Follicular dendritic cells do not function as antigen-presenting cells for TH-cell activation. These dendritic cells were named for their exclusive location in organized structures of the lymph node called lymph follicles, which are rich in B cells.
  3. Follicular dendritic cells do function as antigen-presenting cells for TH-cell activation. These dendritic cells were named for their exclusive location in organized structures of the lymph node called lymph follicles, which are rich in B cells.
  4. the interaction of B cells with follicular dendritic cells is an important step in the maturation and diversification of B cells.
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TLS Online TPP Program

#Question id: 20970

#Unit 12. Applied Biology

Which protein has been produced generating a transgenic sheep that is used for replacement therapy for individuals at risk from emphysema?
TLS Online TPP Program

#Question id: 1873

#Unit 4. Cell Communication and Cell Signaling

Mutations in the gene encoding which of the following most commonly results in severe combined immunodeficiency (SCID)?
TLS Online TPP Program

#Question id: 15002

#Unit 8. Inheritance Biology

If you performed a dihybrid cross and found that your results were significantly different from the 9:3:3:1 ratio, what would you suspect?
TLS Online TPP Program

#Question id: 12708

#Unit 8. Inheritance Biology

800 meiocytes with the genotype AaBb undergoes meiosis with 60% chance of crossing over with A and B. How many recombinant gamete form?
TLS Online TPP Program

#Question id: 101

#Unit 1. Molecules and their Interaction Relevant to Biology

You have two bottles, each of which contains a white, crystalline substance. Your lab director tells you that one contains lactose and the other sucrose. Your job is to determine which bottle contains which sugar. Which procedure would you use?