Geminin is expressed in late G1; it binds to and inhibits Cdt1 preventing reloading of the MCM helicase.

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#Id: 7380

#Unit 5. Developmental Biology

Oskar mRNA becomes complexed to kinesin I, a “plus-directed” motor protein that moves it toward the growing end of the microtubules at the posterior region, where Oskar protein can bind nanos mRNA

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#Id: 10235

#Unit 6. System Physiology – Plant

Brassinosteroids, like gibberellins, suppress photomorphogenesis in the dark.

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#Id: 5547

#Unit 7. System Physiology – Animal

Positive charge forces cations such as Mg++ and Ca++ to diffuse from the tubular lumen through the paracellular space and into the interstitial fluid

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#Id: 9836

#Unit 6. System Physiology – Plant

CONSTITUTIVE PHOTOMORPHOGENESIS1 (COP1), another negative regulator of photomorphogenesis, is a component of the E3 ubiquitin ligase complex that targets photomorphogenesis-promoting proteins for degradation such as phyA, phyB.

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#Id: 3041

#Unit 3. Fundamental Processes

Synthesis of an Okazaki fragment terminates just before the start of the RNA primer of the preceding fragment.