The “introns late” hypothesis is the proposal that the ancestral protein-coding sequences were uninterrupted and that introns were subsequently inserted into them

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#Id: 4449

#Unit 13. Methods in Biology

Electron microscopy under optimal conditions provides, a resolution of 0.10 nm wavelength.

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#Id: 4487

#Unit 13. Methods in Biology

QRS complex – Ventricular Depolarization

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#Id: 5376

#Unit 10. Ecological Principles

Some animals can become trap-happy, particularly if the traps are baited with food. This would result in an underestimate of the population size.

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#Id: 9877

#Unit 4. Cell Communication and Cell Signaling

Chemical barriers at these surfaces include specialized soluble substances that possess antimicrobial activity as well as acid pH.

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#Id: 8077

#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.