The Golgi consists of four functionally distinct regions:

a. Cis compartments

b. Medial compartments

c. Trans compartments

d. Trans-Golgi network

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#Id: 6381

#Unit 2. Cellular Organization

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#Id: 7925

#Unit 2. Cellular Organization

Endoplasmic reticulum

Network of interconnected membranous structures within the cytoplasm of eukaryotic cells contiguous with the outer nuclear envelope.

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#Id: 1488

#Unit 4. Cell Communication and Cell Signaling

The DNA damage checkpoint controlled by p53.

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#Id: 5487

#Unit 10. Ecological Principles

Age at first reproduction

Earlier age →  Later age 

Clutch size

Large clutch size → small clutch size

Small size →  Large size

Trade off

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#Id: 7022

#Unit 5. Developmental Biology

Stem cell niches in the testes of male Drosophila illustrate the importance of local signals, cell-to-cell adhesion, and asymmetric cell division.