Mutating or deleting the destruction box in mitotic cyclins prevented their ubiquitination and blocked cells from exiting mitosis.

TLS Online TPP Program

#Id: 7011

#Unit 5. Developmental Biology

Regulation is highly influenced by the microenvironment that surrounds a stem cell and is known as the stem cell niche.

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#Id: 7906

#Unit 2. Cellular Organization

When the environment of a cell has inadequate oxygen, enzymatic modification of proteins on the outer mitochondrial membrane induces mitophagy.

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#Id: 8821

#Unit 6. System Physiology – Plant

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#Id: 3996

#Unit 7. System Physiology – Animal

Phase 4 (resting membrane potential) averages about −90 millivolts.

TLS Online TPP Program

#Id: 8764

#Unit 1. Molecules and their Interaction Relevant to Biology

Some thermostable proteins are stabilized by an increased size of the protein’s hydrophobic core, an increased size of the interface between its domains and/or subunits, and a more tightly packed core as evidenced by a reduced surface-to-volume ratio.