Septins 

GTP-binding proteins 

serve as an additional filament system in all eukaryotes except terrestrial plants. 

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#Id: 5368

#Unit 10. Ecological Principles

The simplest method to measure population density is to visually count the number of organisms in a population in a given habitat.

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#Unit 2. Cellular Organization

H2AX subtype is has a C-terminal tail that is distinct from the canonical H2A, characterized by a SQEL/Y motif at the end.

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#Id: 471

#Unit 2. Cellular Organization

Exon sequences are conserved by the negative selection of individuals in which the sequences have changed

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#Id: 1153

#Unit 7. System Physiology – Animal

Negatively charged large molecules are filtered less easily than positively charged molecules of equal molecular size.

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#Id: 3631

#Unit 3. Fundamental Processes

Wobble Allows Some tRNAs to Recognize More than One Codon.