An inversion may break a gene into two parts, with one part moving to a new location and destroying the function of that gene.

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#Id: 7877

#Unit 2. Cellular Organization

The cristae’s membranes are the site of ATP synthesis thus the invaginations increase the mitochondrion’s capacity to generate ATP.

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#Id: 8109

#Unit 1. Molecules and their Interaction Relevant to Biology

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#Id: 2094

#Unit 8. Inheritance Biology

Tandem duplication- Duplicated chromosome segment is adjacent to the original segment.

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#Id: 2449

#Unit 3. Fundamental Processes

In the absence of both activator and repressor, RNA polymerase occasionally binds the promoter spontaneously and initiates a low level (basal level) of transcription. 

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#Id: 5722

#Unit 10. Ecological Principles

Ecotypes, individuals of a species that vary in external appearance and their variations are genetically fixed and irreversible The individuals of a species growing under different environmental conditions differ in external appearance, but these changes are only temporary, not permanent, and hence reversible Ecads (Ecophenes).