totipotency
determination
egg-polarity gene
morphogen
segmentation gene
gap gene
pair-rule gene
segment-polarity gene
homeotic gene
homeobox
Antennapedia complex
bithorax complex
homeotic complex (HOM-C)
Hox gene
apoptosis
caspase
656
antigen
autoimmune disease
humoral immunity
B cell
antibody
T cell
cellular immunity
T-cell receptor
major histocompatibility complex (MHC) antigen
theory of clonal selection
primary immune response
memory cell
secondary immune response
somatic recombination
junctional diversity
somatic hypermutation