A far-reaching education bill that requires students to learn about “human embryological and fetal development,” mandates ...
Endosperm growth was normal for four days following hybridization of G. arboreum (2n = 26) as pistillate parent with G. hirsutum (2n = 52). On the fifth day after cross pollination, numerous ...
This is a preview. Log in through your library . Abstract The identities of the digits of the avian forelimb are disputed. Whereas paleontological findings support the position that the digits ...
THIS learned and imposing monograph will in the course of time take its place alongside Dobell's "Leeuwenhoek' as one of the classics of the critical and historical literature of biology. We already ...
SCDIRB copy 39088019626001 not included in the Bibliotheca Beckwithiana (unpublished). SCDIRB copy has bookplate: Smithsonian Libraries: The Beckwith-Browning-Peterson Teratology Collection. SCDIRB ...
The Embryological Origin of Muscle How does the fertilized egg differentiate into specialized tissues? This traditional question of biology is now being investigated by growing differentiated muscle ...