An embryo is the initial stage of development for a multicellular organism. In organisms that reproduce sexually, embryonic development is the part of...

implanted embryo is detected by the presence of increased levels of human chorionic gonadotropin (hCG) in a pregnancy test. The implanted embryo will receive...

culture medium in a laboratory. After the fertilised egg (zygote) undergoes embryo culture for 2–6 days, it is transferred by catheter into the uterus, with...

embryology, cleavage is the division of cells in the early development of the embryo, following fertilization. The zygotes of many species undergo rapid cell...

Cryopreservation of embryos is the process of preserving an embryo at sub-zero temperatures, generally at an embryogenesis stage corresponding to pre-implantation...

formation of the human embryo. It is characterised by the processes of cell division and cellular differentiation of the embryo that occurs during the...

Embryo transfer refers to a step in the process of assisted reproduction in which embryos are placed into the uterus of a female with the intent to establish...

In botany, a seed is a plant embryo and food reserve enclosed in a protective outer covering called a seed coat (testa). More generally, the term "seed"...

Embryo culture is a component of in vitro fertilisation where in resultant embryos are allowed to grow for some time in an artificial medium. The duration...

Embryo loss (also known as embryo death) is the death of an embryo at any stage of its development which in humans, is between the second through eighth...