Nuclear lamina

Fibrous network on the inner surface of the nuclear envelope composed of lamin intermediate filaments that provides structural support for the nuclear envelope and also acts as an anchoring site for chromosomes.

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#Id: 7005

#Unit 5. Developmental Biology

 Precursor cell, is widely used to denote any ancestral cell type (either stem cell or progenitor cell) of a particular lineage; it is often used when such distinctions do not matter or are not known.

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#Id: 6007

#Unit 3. Fundamental Processes

Most origins are localized in regions between genes, which suggests that it may be important for the local chromatin structure to be in a nontranscribed condition.

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#Id: 2370

#Unit 5. Developmental Biology

In planaria, Wnts functioning through β-catenin promotes tail development while repressing head regeneration

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#Id: 6968

#Unit 8. Inheritance Biology

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#Id: 10476

#Unit 4. Cell Communication and Cell Signaling

Inherited a single mutant NF1 allele then develop neurofibromas, a benign tumor of the sheath cells that surround nerves, caused by loss of both alleles through LOH.