Biology 441 Lectures, Spring 2015
January 7
Introduction. Sea urchin embryos compared with vertebrate embryos
January 9
Formation of germ layers
January 12
Embryonic development in teleost fish
January 16
Embryonic development in amphibians
January 21
Embryonic development in birds and mammals
January 23
Mechanics of early development
January 26
Birth defects
January 28
review session
January 28
review session, smaller version
February 2
Experimental embryology; regulation
February 4
Physical forces
February 6
Physical forces, continued
February 9
Amoeboid locomotion
human leucocyte moving among red blood cells
Labyrinthula
active movement and rearrangement of sponge cells
development of blood vessels
February 11
Amoebae continued; Turing
a shelled amoeba
Amoeba proteus, multiple pseudopods and phagocytosis
Dictyostelium amoebae aggregating
mesenchymal cells moving on an adhesion gradient
cells on a grid with islands of palladium metal
the Turing pascal program shown in class
February 13
Cell locomotion and pattern formation
cell growing on silicone rubber and creating wrinkles
rearrangement of collagen demonstrated using birefringence
clumping of fibroblasts growing on a collagen gel
formation of Liesegang rings
February 16
Symmetry
February 20
This lecture was not recorded.
February 23
Stem cells, and ectodermal organs
March 2
Ectodermal organs, continued
axons in tissue culture
March 6
Plant Development
March 6
a larger version of the same video
March 16
Mesoderm
March 18
Mesoderm continued: heart
March 20
Circulatory system; Endoderm
March 23
Pre-patterns, Positional Information, and other theories
March 25
Atherosclerosis
March 27
Limb buds
March 30
Diffusion gradients, and more on limb grafting experiments
computer simulation of gradient formation by averaging neighbors
another run of the same program
April 1
Limb buds continued; apoptosis
April 6
This lecture was not recorded.
April 10
Sex determination
April 13
Metamorphosis
April 15
Liesegang rings; Five common misunderstandings
April 17
Immunology and Autoimmunity
April 20
Autoimmunity continued, then Cancer
April 22
Cancer
April 24
Evo-Devo
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