In the absence of Hg2+, MerR functions as a repressor and binds to the operator region of the mer operon, thus preventing transcription of the structural genes.

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#Id: 5425

#Unit 7. System Physiology – Animal

In the peripheral nervous system, myelin is compacted when the extracellular portions of a membrane protein called protein zero (P0 ) lock to the extracellular portions of P0 in the apposing membrane

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#Id: 2382

#Unit 3. Fundamental Processes

Prp2 is responsible for the activation of the spliceosome Prp22 helps the release of the mature mRNA from the spliceosome

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#Id: 5179

#Unit 7. System Physiology – Animal

Serum has essentially the same composition as plasma, except that its fibrinogen and clotting factors II, V, & VIII have been removed.

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#Id: 923

#Unit 13. Methods in Biology

The 51Cr Release Assay is used to measure Cell death not apoptosis

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#Id: 3251

#Unit 3. Fundamental Processes

5-bromouracil induces transitions in both directions, A:T ↔ G:C.