Merotelic attachment 

A kinetochore can attach to microtubules emanating from both poles at the same time

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#Id: 5676

#Unit 7. System Physiology – Animal

K+ & Ca2+ enter via the channel and produce depolarization

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#Id: 8032

#Unit 1. Molecules and their Interaction Relevant to Biology

Ornithine and citrulline, which are not found in proteins, are intermediates in the biosynthesis of arginine and in the urea cycle.

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#Id: 6483

#Unit 3. Fundamental Processes

For RNA polymerase II, the positioning factor is TFIID, which consists of TBP associated with up to 14 other subunits called TAFs (for TBP -associated factors). 

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#Id: 9502

#Unit 6. System Physiology – Plant

ToxA is produced by both Stagonospora nodorum and Pyrenophora tritici‐repentis, which cause glume blotch and tan spot disease, respectively, on wheat (Triticum spp.).

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#Id: 8870

#Unit 2. Cellular Organization

Fission yeast cells carrying a CDK1 mutation in which the tyrosine-15 residue is replaced by phenylalanine

show the same premature mitotic CDK activation and entry into mitosis.