fertilized egg


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Noun1.fertilized egg - an animal organism in the early stages of growth and differentiation that in higher forms merge into fetal stages but in lower forms terminate in commencement of larval lifefertilized egg - an animal organism in the early stages of growth and differentiation that in higher forms merge into fetal stages but in lower forms terminate in commencement of larval life
animal, animate being, beast, creature, fauna, brute - a living organism characterized by voluntary movement
blastosphere, blastula - early stage of an embryo produced by cleavage of an ovum; a liquid-filled sphere whose wall is composed of a single layer of cells; during this stage (about eight days after fertilization) implantation in the wall of the uterus occurs
gastrula - double-walled stage of the embryo resulting from invagination of the blastula; the outer layer of cells is the ectoderm and the inner layer differentiates into the mesoderm and endoderm
morula - a solid mass of blastomeres that forms when the zygote splits; develops into the blastula
umbilical, umbilical cord - membranous duct connecting the fetus with the placenta
References in periodicals archive ?
As a fertilized egg cell divides to grow into a mature animal, most of the resulting cells become even more specialized--but a small number of cells, known as stem cells, remain uncommitted even as they spawn more specialized progeny.
(Most of the genetic material would be from the parents of the first fertilized egg, since mitochondria contain only a smidge of genetic material.)
If a fertilized egg is a person, then women could potentially be held accountable for engaging in "risky" health behavior that could prevent implantation of that egg.
Their discovery shows how the hormone progesterone suppresses the growth of the uterus's lining so that a fertilized egg can implant in the uterus.
26) has put too much human value on a fertilized egg. Fertilized eggs at conception are cells with potential life capabilities.
This is the first time such a technique has been used in fertilized human eggs.A fertilized egg usually contains two pronuclei - genetic material from the egg and sperm - as well as mitochondria.
If the fertilized egg becomes a tax deduction within its family unit, how much would that reduce government tax revenue?
If a fertilized egg has been flattened to a flattening degree of less than 0.4, this can affect a determinant of morphogenesis moving.
Neither ES nor iPS cells, however, are as flexible as the original fertilized egg, which can form extra-embryonic as well as embryonic tissues.
When the woman's egg cells are mixed with male sperm cells in the lab to produce a fertilized egg cell that will be injected back into the woman, it is quite often the case that more than one fertilized egg cell (human embryo) is produced.
The fertilized egg is clearly not a prepackaged human being.
British researchers have been successful in transplanting the genetic material in the nucleus of a fertilized human egg into another fertilized egg without carrying over mitochondria.