Which of the following is NOT involved in left-right asymmetry of vertebrates?

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#Question id: 3819

#Unit 3. Fundamental Processes

DNA replication is studied in a newly discovered bacterium. It takes 30 min for the bacterium to complete a round of replication at 37oC. A Meselson-Stahl-type experiment was performed. The bacteria were grown for several generations in 14N-medium and then switched to 15N-medium. The DNA molecules were then analyzed.

After one generation in 15N-medium, the DNA is denatured and analyzed in a CsCl gradient. If the single-stranded DNA forms two bands, one with heavy density and one with light density, what conclusion could be drawn about the mechanism of DNA replication in this bacterium?

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#Question id: 32260

#Unit 2. Cellular Organization

Multiple translocator complexes move different proteins from the ER membrane or lumen into the cytosol. Translocator complexes always contain an enzyme marking them for destruction, called:

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#Question id: 11973

#Unit 7. System Physiology – Animal

The digestion of ________ begins in the stomach.

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#Question id: 1141

#Unit 4. Cell Communication and Cell Signaling

If [R] = the free receptor concentration and [L] = the free ligand concentration, Kd is:

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#Question id: 19332

#Unit 12. Applied Biology

Which one of the following transducers is a self-generating type transducer?