Lineage based mechanisms Notes: Definitions & Explanations PDF | Download eBooks
Study Lineage based mechanisms lecture notes PDF with biology definitions and explanation to study “What are Lineage based mechanisms?”. Study lineage based mechanisms explanation with biology terms to review biology course for online degree programs.
Lineage based mechanisms Definition:
Hypotheses based on lineage-based mechanisms propose that cell fate is determined early in development and that cells pass on this destiny to their progeny.
Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson
Lineage based mechanisms Notes:
Many scientific findings suggested that cell fate was restricted early in development and that cells passed on this decision to their progeny: a lineage-based mechanism. On the other hand, cell fate was not always correlated with lineage and many cells in developing organisms changed their fate in a new spatial context even at late stages of development which is a position-based mechanism. Hence, two concepts of pattern formation emerged in which ancestral or neighboring cells determine the fate of a given cell. In this view, the basic pattern of cell differentiation is mapped out according to the directions in which meristematic cells divide and expand.
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