MOLBIOL 3M03 Lecture Notes - Lecture 1: Demethylation, Somatic Cell, Chromosome
15 Mar 2017
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Document Summary
Most organism never stop developing (environment triggered) Characterized by the differentiation of the fertilized egg into the many cell types of the body and by the construction of functionally integrated organs. Includes fertilization, cleavage, gastrulation, organogenesis, metamorphosis, regeneration and senescence. Developmental biology studies embryonic and other developmental processes. Two major objectives of development: generates cellular diversity and order within organisms, ensures the continuity of life from one generation to the next. The main questions of developmental biology are: differentiation a single cell, the fertilized egg gives rise to hundreds of different cell types. How can the identical set of genetic instructions produce different types of cells: morphogenesis differentiated cells are organized into intricate tissues and organs. Coordinating cell growth, cell migration and cell death. How is division regulated: reproduction sperm and egg are highly specialized and only they can transmit the instructions for making an organism from one generation to the next.
