By the end of _______________ , distribution of cells into the three primary tissue types has been completed

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#Question id: 15849

#Unit 4. Cell Communication and Cell Signaling

Host-pathogen interactions are an ongoing arms race; pathogens evolve to express unique structures that avoid host detection, and the host germline-encoded recognition system co-evolves to match these new challenges. However, because pathogens generally have much shorter life cycles than their vertebrate hosts, and some utilize error-prone DNA polymerases to replicate their genomes, pathogens can evolve rapidly to evade host encoded recognition systems. Which error prone DNA polymerase is used  by human?

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#Question id: 32514

#Unit 1. Molecules and their Interaction Relevant to Biology

Cyanide acts primarily via binding to 

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#Question id: 2272

#Unit 2. Cellular Organization

Bacteria may be propelled by

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#Question id: 23783

#Unit 7. System Physiology – Animal

Retinal is parallel to the surface of the membrane and is attached to a

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#Question id: 3769

#Unit 3. Fundamental Processes

Within a double-stranded DNA molecule, adenine forms hydrogen bonds with thymine, and cytosine forms hydrogen bonds with guanine. What is the significance of the structural arrangement?