Rho GTPases have the all of the following effects on cytoskeletal actin except

A) stress fiber formation.
B) formation of pseudopodia.
C) stabilization of neurons.
D) assembly of the cytokinetic furrow.
E) regulation of endocytosis and exocytosis.


C) stabilization of neurons.

Biology & Microbiology

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Griffith found that a mouse injected with the green 'R' bacteria lived. When injected with the red 'S' bacteria died but if injected with dead 'S' bacteria, the mouse lived. In the image here, the mouse was injected with dead 'S' bacteria along with the live 'R' bacteria. The mouse then died.

Who followed up this experiment to determine what "transforming principle" caused the mice to die?

Biology & Microbiology

Excerpt from Figure 14.8 The accompanying figure represents which chromosomal change?

A. Inversion B. Deletion C. Duplication D. Translocation E. Aneuploidy

Biology & Microbiology

Restriction enzymes are

A) bacterial enzymes that splice DNA. B) bacterial enzymes that destroy phage DNA. C) animal enzymes that splice RNA. D) viral enzymes that destroy host DNA.

Biology & Microbiology

Which portal of entry is mismatched to its description?

A) ocular: via the conjunctiva B) gastrointestinal: often involves fecal-to-oral transmission C) urogenital: often associated with sexually-transmitted pathogens D) otic: pathogen enters via the ear E) parenteral: pathogen is passed from mother to child through the placenta

Biology & Microbiology