The bacterial DnaA protein is the replication initiator; it binds sequence specifically to multiple sites (dnaA boxes) in oriC.

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#Id: 5541

#Unit 7. System Physiology – Animal

The Cl – moves into the interstitium via ClC-Kb channels & Barttin, a protein in the cell membrane, is essential for normal ClC-Kb

function

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#Id: 2374

#Unit 5. Developmental Biology

An anterior-to-posterior gradient of Erk signaling functions as a positive inducer of head specification

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#Id: 10153

#Unit 6. System Physiology – Plant

Strigolactone promote symbiotic interactions with arbuscular mycorrhizal fungi, facilitating phosphate uptake from the soil.

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#Id: 4538

#Unit 12. Applied Biology

Subunit vaccines contain only specific protein from a pathogenic organism. For a virus, this protein is often the coat protein.

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#Id: 3243

#Unit 3. Fundamental Processes

Adenine and guanine are also subject to spontaneous deamination. Deamination converts adenine to hypoxanthine, which hydrogen-bonds to cytosine rather than to thymine; guanine is converted to xanthine,

which continues to pair with cytosine, although with only two hydrogen bonds.