oriC is hemimethylated and remains in that condition for approximately 13 minutes.

TLS Online TPP Program

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#Unit 6. System Physiology – Plant

In the dark, PEPCase returns to the inactive form because PEPCase‐kinase is inactivated and a phosphatase releases the phosphoryl group from PEPCase.

TLS Online TPP Program

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#Unit 2. Cellular Organization

Nuclear transport receptor

have affinity for FG-repeats on nucleoporins.

TLS Online TPP Program

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#Unit 11. Evolution and Behavior

Neutral theory of molecular evolution

Developed by Motoo Kimura, who argued that most of the evolution of DNA sequences occurs by chance (genetic drift) rather than by natural selection. 

TLS Online TPP Program

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#Unit 2. Cellular Organization

PTS1 signals are recognized by the peroxin Pex5 receptor

PTS2 signals are recognized by the peroxin Pex7 receptor

Neither targeting sequence is cleaved after import.

TLS Online TPP Program

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#Unit 5. Developmental Biology

T2 cells also express BAFF-R, the receptor for the B-cell survival factor BAFF, whose expression is dependent on signals received through the BCR. 

As B cells differentiate from the transitional T2 state to full maturity, they raise their levels of mIgD still further, while reducing the expression of mIgM. They also cease to express CD24 and CD93.