If a thymocyte randomly generated a TCR with an affinity for MHC Class I, the TCR and CD8 would bind MHC Class I together, and generate a signal that specifically initiated a program that is 

a) silenced CD8 expression

b) silenced CD4 expression

c) induced expression of genes specific for helper T-cell lineage function

d) induced expression of genes specific for cytotoxic T-cell lineage function

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#Question id: 5846

#Unit 8. Inheritance Biology

The bacteriophage can lysogenize after infecting a bacterium, i.e. integrate into the host bacterial chromosome by site-specific recombination, and may reside there for many generations before an excision event regenerates the viral genome in an infective form.  Which one of the following is not a component of these events?

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#Question id: 28403

#Unit 5. Developmental Biology

A cell that low concentration of nodal related protein and also have vegT and vg1 expression that type of cell undergo to the formation of which structure?

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#Question id: 31171

#Unit 7. System Physiology – Animal

Which of the following plays a key role in the initiation and regulation of the action potential?

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#Question id: 28553

#Unit 5. Developmental Biology

At which condition upregulate the translation of the PKA catalytic subunit PKA-C?

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#Question id: 18229

#Unit 8. Inheritance Biology

You are conducting genetic linkage studies of an autosomal dominant disease. You are focused on two SSR markers that may be linked to each other and to the disease. Here is a family in which some individuals are affected:

 

Calculate LOD scores for linkage at θ = 0.1 between SSR62 and SSR93