43, No. 8, Aug., 1916 The Development of the Embryo Sac and Em... The Development of the Embryo Sac and Embryo of Cooperia Drummondii This is the metadata section. Skip to content viewer section.

The development of the embryo sac continues and proceeds up to about the receptive stage of the stigma. 2. The ovules are cauline, arising from the central axis of the flower. The floral axis bulges ...

The yolk sac functions as nourishment for the developing embryo and can usually be seen by five-and-a-half to six weeks gestational age on a transvaginal ultrasound. Having a gestational sac doesn ...

An anembryonic pregnancy, also known as a blighted ovum, occurs when a fertilised egg implants in the uterus but does not develop into an embryo. "Although the gestational sac forms, it remains ...

In the mouse developing embryo, she previously demonstrated a bias at the two ... and the hypoblast, or the yolk sac. When they tracked GFP expression, the team found that one population of cells ...

As division continues, some cells divide into the growing mass, distinguishing cells that form the embryo (epiblast) from those that form the placenta (trophectoderm). Further cell divisions lead to ...