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End result of spermatogenesis
End result of oogenesis
Fertilization
Cleavage
Blastula
Gastrulation
Gastrula
ectoderm
endoderm
mesoderm
Animal pole vs vegetal pole
Cell movements during gastrulation
Molecular basis of gastrulation
fate maps
Roux's experiment
Driesch's experiment
totipotency
Horstadius' tier experiments
John Gurdon's experiments
Regulative Development Model
Asymmetric Division
Symmetric Division
How do cells know which genes to express?
How animal-vegetal axis is determined (in Xenopus)
How dorsal ventral axis is determined (in Xenopus)
Induction
Spemann's separation experiment
The Organizer
dorsal lip of the blastopore
Results of dorsal lip transplant
B-catenin
Specification
Determination
Involuting Marginal Zone cells
Neurula
What's in a human sperm cell?
What's in a human egg cell?
Egg-sperm recognition
Fast block to polyspermy
Slow block to polyspermy
Follicle Stimulating Hormone (FSH)
Corpus luteum
Luteinizing hormone
where does fertilization (as well as the first cleavage) occur?
first ball of cells after cleavage in humans
human chorionic gonadotrophin (hCG)
Implantation
chorionic gonadotropin
The Four Extra-embryonic Membranes
Chorion
Amnion
Yolk sac
Allantois
First Trimester
Second Trimester
Third trimester
