The two H2A.H2B dimers each associate with 30 bp of DNA on either side of the central 60 bp of DNA bound by H3 and H4.

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#Id: 856

#Unit 2. Cellular Organization

During infection, most bacteria remain in extracellular spaces and use a specialized mechanism, the type III secretion system (T3SS)

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#Id: 2075

#Unit 8. Inheritance Biology

More than two X-chromosome causes Poly-X female and Triplo-X

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#Id: 7308

#Unit 12. Applied Biology

In uranium leaching, Acidophillus ferrooxidans oxidizes U4+ to U6+ with O2 as an electron acceptor. 

However, Uranium leaching depends more on the abiotic oxidation of U4+  by Fe3+ with A. ferrooxidans contributing to the process mainly through the reoxidation of Fe2+ to Fe+3, as in copper leaching.

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#Id: 7932

#Unit 2. Cellular Organization

Signal sequence

ER targeting sequence, located at the N-terminus of the protein

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#Id: 6681

#Unit 3. Fundamental Processes

Each snRNP contains a single snRNA (100-300 nt) and several (20) proteins. The U4 and U6 snRNPs are usually found together as a di-snRNP (U4/U6) particle.