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TLS Online TPP Program

#Id: 2912

Each DnaB activates a DnaG primase-in one case to initiate the leading strand, and in the other to initiate the first Okazaki fragment of the lagging strand

#Unit 3. Fundamental Processes #Replication origin and replication fork #Part B Pointers
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TLS Online TPP Program

#Id: 363

#Unit 1. Molecules and their Interaction Relevant to Biology

When cellular iron concentrations return to normal levels, IRP1 is converted to aconitase, and IRP2 undergoes proteolytic degradation, ending the low-iron response.
TLS Online TPP Program

#Id: 10206

#Unit 6. System Physiology – Plant
TLS Online TPP Program

#Id: 9870

#Unit 6. System Physiology – Plant

Upon absorbing UV-B photons, the tryptophans undergo structural changes that break the salt bridges, leading to the dissociation of the two functionally active monomers. The monomers then interact with COP1–SPA complexes to activate gene expression
TLS Online TPP Program

#Id: 4042

#Unit 2. Cellular Organization

In contrast, there is another category of heterochromatin, called facultative heterochromatin, in which regions of euchromatin are converted to a heterochromatic state.
TLS Online TPP Program

#Id: 6842

#Unit 8. Inheritance Biology

Narrow-sense heritability

h2 = VA/VP