At the same time, the sperm microtubules induce the contraction of the actin-myosin cytoskeleton toward the anterior, thereby clearing PAR-3, PAR-6, and PKC-3 from the posterior of the 1-cell embryo.

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#Unit 2. Cellular Organization

In MTOCs, 

The (−) end of the microtubule stays anchored in the MTOC while the (+) end extends away from it.

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#Unit 12. Applied Biology

Phenol Red

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#Id: 2135

#Unit 8. Inheritance Biology

Recombination is also reduced within a pericentric inversion. No dicentric bridges or acentric fragments are produced.

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#Unit 13. Methods in Biology

CD spectra is used to

determine whether proteins are properly folded, 

estimate the fraction of the protein that is folded in either of the common secondary structures, and

monitor transitions between the folded and unfolded states.

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#Unit 4. Cell Communication and Cell Signaling

Superantigens

Viral or bacterial proteins that bind simultaneously to the Vβ domain of a T-cell receptor and to the α chain of a Class II MHC molecule