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Studying the Genetics of Development definitions

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  • Model Organism
    An easily studied species with genetic traits similar to humans, used to investigate developmental processes.
  • Zygote
    A fertilized egg cell possessing the potential to generate all cell types in an organism.
  • Totipotency
    The capacity of a single cell to differentiate into any cell type within an organism.
  • Determination
    The process by which a cell becomes committed to a specific fate, such as a particular cell type or function.
  • Mosaic Determination
    A developmental mode where each cell's fate is fixed early, and loss of cells leads to abnormal development.
  • Regulative Determination
    A developmental mode allowing cells to adjust fates based on environmental cues, compensating for cell loss.
  • Gene Regulation
    The control of gene expression timing and location, crucial for proper development and cell specialization.
  • Mutation
    A change in genetic material that can disrupt normal development, revealing gene function.
  • Variable Gene Activity Hypothesis
    A concept proposing that selective gene activation or inactivation directs cell fate during development.
  • Cell Fate
    The eventual identity or function a cell will acquire as development progresses.
  • Gene Expression
    The process by which genetic information is used to produce functional products at specific times and locations.
  • C. elegans
    A nematode model organism with a fully mapped cell lineage, ideal for studying developmental genetics.
  • Fruit Fly
    A classic model organism in genetics, valued for its rapid life cycle and genetic tractability.
  • Cell Lineage
    The developmental history of a cell as it divides and differentiates into specialized types.