An Introduction to Epigenetics / by Hoover, Roger, author 648123

“…In other words, a single fertilized egg cell - the zygote - changes into many cell types including neurons, muscle cells, epithelium, blood vessels etc. as it continues to divide. …”
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ENCYCLOPEDIA AMERICANA by Americana Corporation 641456

“…Venice to Wilmot, John -- VOLUME 29. Wilmot Proviso to Zygote -- VOLUME 30. Index.…”

Types of Cells in Biology / by Gearhart, Brooklynn, author 648822

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Muslim ethics : emerging vistas / by 341369 Sajoo, Amyn B., Institute of Ismaili Studies.