Which is a group of interbreeding, sexually reproducing individuals that have a common set of genes—the gene pool. 

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#Unit 4. Cell Communication and Cell Signaling

Three major classes of animal-cell junctions: 

1. Anchoring junctions

2. Tight junctions

3. Gap junctions

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#Unit 7. System Physiology – Animal

The receptor (Pacinian corpuscle) converts mechanical energy into an electrical response, the magnitude is proportional to the intensity of the stimulus. Thus, the responses are described as graded potentials rather than all-or-none

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#Unit 8. Inheritance Biology

Restriction Fragment length Polymorphism (RFLP) 

RFLP is generated by the presence and absence of a recognition site for the same restriction endonuclease in the same region of a chromosome from the different individuals of a species.

result, the concerned restriction enzyme produces fragments of different lengths

These differences are detected by gel electrophoresis combined with hybridization with a labelled (usually, radiolabelled) probe specific for that chromosome region.

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#Unit 13. Methods in Biology

RCF units are therefore dimensionless (denoting multiples of g) and revolutions per
minute are usually abbreviated as r.p.m.

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#Unit 11. Evolution and Behavior

Aristotle proposed that life arose from nonliving material if the material contained pneuma (“vital heat”).