Embryos at morula stage were ultrastructurally examined. Blastomeres of normal embryos are characterized by the presence of ribosomes, short single and branched cisterns of endoplasmic reticulum, smal...
OBJECTIVE: To compare the survival and developmental potential of mouse morula, early blastocysts and blastocysts cryopreserved by vitrification. METHODS: One hundred and forty-two mouse morula, 135 e...
It has been shown that it is possible to establish human embryonic stem cell (hESC) lines from morula. Details of the aforementioned injection method of morula under blastocyst are described in this c...
This chapter describes the tools and the experimental route of targeted manipulation by aggregation in the mouse using targeted embryonic stem cells (ES cells). Instead of injecting ES cells into the ...
Levels of nucleotides and sugar nucleotides in embryos of Bufo arenarum at the stages of morula, gastrula, and neurula have been measured. The total amounts of purine nucleoside diphosphates decreased...