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TLS Online TPP Program

#Id: 4947

Expression of the other phytochrome types (B to E in angiosperms) is independent of light and both Pr and Pfr forms are stable.

#Unit 6. System Physiology – Plant #Mechanisms of action of Phytochromes #Part B Pointers
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#Id: 4686

#Unit 11. Evolution and Behavior

Interactions are classified by how they affect the fitnesses of the two individuals.
TLS Online TPP Program

#Id: 2108

#Unit 8. Inheritance Biology

In an individual heterozygous for a deletion, the normal chromosome loops out during chromosome pairing in prophase I.

 
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#Id: 96

#Unit 5. Developmental Biology

Cytoplasmic Determinants are molecules, often transcription factors that regulate gene expression that directs the cell along a particular path of maturation.
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#Id: 1828

#Unit 11. Evolution and Behavior

PreCambrian- Earliest eukaryotes and multicellular eukaryotes
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#Id: 9035

#Unit 4. Cell Communication and Cell Signaling

Binding of the ligand to the receptor causes the receptor to change from an inactive conformation (R) to an active conformation (R*). Only the active R* conformation of the receptor can trigger the signal transduction pathway.