When the level of Ca²⁺ is raised, which of the following causes troponin I to release its hold on actin?

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#Question id: 2941

#Unit 2. Cellular Organization

Centromeric Rec8 becomes cleaved during:

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#Question id: 29467

#Unit 6. System Physiology – Plant

columella of the root cap cells represent statocytes, or gravity-sensing cells, this can be explained by

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#Question id: 33362

#Unit 1. Molecules and their Interaction Relevant to Biology

a. Hb Cowtown: eliminates an ion pair involved in T-state stabilization

b. Hb Milwaukee: substitutes a Glu for a Val

c. Hb Providence: substitutes an Asn for a Lys that normally projects into the central cavity of the tetramer

d. Hb Philly: substitutes a Phe for a Tyr

Which Hb variant will have changed pI as compared to HbA

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#Question id: 3645

#Unit 3. Fundamental Processes

The single-stranded bubble created in DNA replication is coated with _____________ to protect it from breakage and to prevent the DNA renaturing.

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#Question id: 4430

#Unit 3. Fundamental Processes

During splicing, an unusual type of base pairing occurs. What is it and what does it do?