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TLS Online TPP Program

#Question id: 1794

Which of the following statements is TRUE of natural antibodies?

#Unit 4. Cell Communication and Cell Signaling

  1. Natural antibodies are mostly IgG

  2. Natural antibodies are mostly high affinity autoantibodies

  3. Natural antibodies are produced spontaneously by CD5+ B-cells

  4. Natural antibodies are acquired by transplacental passage from the mother

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TLS Online TPP Program

#Question id: 2470

#Unit 2. Cellular Organization

The elastic Brownian ratchet model has been proposed to explain:
TLS Online TPP Program

#Question id: 23090

#Unit 12. Applied Biology

Which bacterium is capable of withstanding doses of radiation that are several times higher than human cells can tolerate?
TLS Online TPP Program

#Question id: 4353

#Unit 3. Fundamental Processes

The cAMP receptor protein (CRP) is said to be responsible for positive regulation of the lac operon because __.
TLS Online TPP Program

#Question id: 2514

#Unit 2. Cellular Organization

In what way are intermediate filaments similar to both microtubules and microfilaments?
TLS Online TPP Program

#Question id: 27670

#Unit 1. Molecules and their Interaction Relevant to Biology

When Phi is fixed at -80º. Clashes occur at all Psi angles except: 
(a) +10º to -55º for alpha helix
(b) +10º to -55º for beta strand 
(c) +90º to 180º for alpha helix
(d) +90º to 180º for beta strand
Choose which of the following is correct