Natural selection was Darwin’s brilliant hypothesis, independently conceived by Wallace, that accounts for adaptations, features that appear “designed” to fit organisms to their environment.

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#Id: 2077

#Unit 8. Inheritance Biology

During human chromosome rearrangements deletion onto the chromosome 4 in the short arm causes Wolf–Hirschhorn syndrome.

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#Id: 1216

#Unit 7. System Physiology – Animal

The chief cells of the parathyroid glands synthesize and secrete PTH.

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#Id: 6309

#Unit 3. Fundamental Processes

In hydrolytic editing, the polymerase backtracks by one or more nucleotides and cleaves the RNA product, removing the error-containing sequence. 

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#Id: 2190

#Unit 10. Ecological Principles

Facilitation model =  Species are facilitated by previous colonists

Inhibition model =  They are inhibited by the action of previous colonists

Tolerance model  =  They are unaffected by  previous colonists/ New pioneer neither inhibit nor facilitate 

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#Id: 5753

#Unit 10. Ecological Principles