The mean total length of hatchlings was calculated as 6.38 mm. The mean size of ovum was estimated 1.4 mm in diameter.doi:10.2478/s11756-008-0086-zFerah SayimU?ur KayaVersitaBiologiaSayim, F. & Kaya, U. 2008. Embryonic development of the tree frog, Hyla arborea. Biologia 63: 588-...
Eyes removed from frog embryos at various stages of development gave a definite pattern of change in the electroretinogram. From the 7th to 9th days the electroretinogram consisted of slow, purely cornea-negative potentials. From the 9th to 10th days the responses were negative but included a ...
During week two of embryonic development, embryonic cells have begun the process of differentiation. The identical cells formed by the early divisions of the zygote are beginning to take on the different characteristic of muscle, blood, nerve, bone, and other kinds of cells. The embryo has burro...
Define postembryonic. postembryonic synonyms, postembryonic pronunciation, postembryonic translation, English dictionary definition of postembryonic. adj. Following the embryonic stage of development. American Heritage® Dictionary of the English Langu
In the early embryogenesis of the frog, Xenopus laevis, cells proliferate by rapid and synchronous divisions, followed by cell cycle elongation and prolong... S Ueno,T Ueno,Y Iwao - 《Development Growth & Differentiation》 被引量: 5发表: 2011年 Expression of G1 Cyclins During Early Development...
not due to the missing brain somehow hampering immune system development because the composition of the immune cells remained the same with or without a brain. Instead, they found that the effect was due to the brain sending signals to the immune cells to move toward the site of an ...
Effects of ethyl carbamate (urethan) and related compounds on early developmental processes of the leopard frog, Rana pipiens. McMILLAN DB, BATTLE HI. DB Mcmillan,HI Battle - 《Cancer Research》 被引量: 14发表: 1954年 Effect of ethyl carbamate (Urethan) on the early development of the teleost...
Describe how the emergent properties of the cells of the gastrula direct embryonic development. Describe gastrulation in general terms and the role it plays in the formation of the three germ layers. The apical portion of intestinal cells is...
Epigenetic reprogramming and nuclear transfer From frog cloning to customized human embryonic stem cells Nuclear transfer, also referred to as cloning, attracted public attention when the first mammal, the sheep Dolly, was cloned from an adult cell. In this review, we highlight some of the ...
of evolution of hybrid inviability between birds and mammals: interspecific hybrid inviability evolves much faster in mammals than in birds34. However, no comprehensive analysis of the embryonic development of chicken-quail hybrids has been conducted to date. Thus, in the present study, we observed...