Examlex
Interferon production is stimulated by the presence of double-stranded DNA in a cell.
Zygote
The initial cell formed when a sperm cell unites with an egg cell, representing the first stage in the development of a new organism.
Blastopore
The initial opening formed during early embryonic development that can develop into either the mouth or anus in animals.
Archenteron
The central cavity of the gastrula stage of embryonic development that is lined with endoderm; primitive digestive system.
Endoderm Layer
The innermost layer of cells or tissues in an embryo that gives rise to the lining of the gastrointestinal tract and associated organs.
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