Word Finder - embryos

definition

In the reproductive cycle, the stage after the fertilization of the egg that precedes the development into a fetus.

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An organism in the earlier stages of development before it emerges from the egg, or before metamorphosis.

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In viviparous animals, the young animal's earliest stages in the mother's body

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In humans, usually the cell growth up to the end of the seventh week in the mother's body

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A rudimentary plant contained in the seed.

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The beginning; the first stage of anything.

In the latest research, scientists inserted a gene for a single protein produced by BDV into mouse embryos.

Last November, the HFEA launched a public debate on testing embryos for ' lower penetrance ', late onset genetic disorders.

Contrary to the United States, Switzerland bans the donation of eggs and human embryos, and also bans surrogate motherhood.

He was an enthusiast for evolution and saw in the growth of embryos what he called ' ontogeny recapitulates phylogeny ' .

That seems to me to be morally preferable than throwing away embryos that you can't use in an IVF program.

Using human embryos is opposed in the name of 'the sanctity of life ', or because embryos are potential human beings.

In April 2005, the law surrounding donating sperm, eggs or embryos was changed.

The HFEA will not license research projects involving embryo splitting with the intention of increasing the number of embryos for transfer.

Generally two healthy embryos are put into the mothers womb.

The co-existence of the asexual encysted form and the sexually mature adult in the same host, exceptionally found in 011ulanus and other Nematodes, is the rule in Trichinella; many of the embryos, however, are extruded with the faeces, and complete the life cycle by reaching the alimentary canal of rats and swine which frequently devour human ordure Swine become infested with Trichinella in this way and also by eating the dead bodies of rats, and the parasite is conveyed to the body of man along with the flesh of "trichinized" swine.

Marchal points out the analogy of this phenomenon to the artificial polyembryony that has been induced in Echinoderm and other eggs by separating the blastomeres, and suggests that the abundant food-supply afforded by the host-larva is favourable for this multiplication of embryos, which may be, in the first instance, incited by the abnormal osmotic pressure on the egg.

Genes of interest were introduced into mouse embryos alongside a " reporter gene " that produces a fluorescent substance wherever the gene is active.

Obtaining stem cells from umbilical cords is far less controversial than sourcing them from embryos (as many scientists would like to do).

The HFEA also regulates the storage of gametes (eggs and sperm) and embryos.

They are obtained from surplus embryos produced throughout the world in the course of infertility treatment.

Embryos are created in a test tube from the mothers eggs and the fathers sperm.

By using PGD, couples at risk of having a child with CF can undergo IVF, and then implant only unaffected embryos.

We will consider some real data from studies on 2 vertebrate embryos.

In my anatomy class, we looked at photos of the amnia to learn about the development of embryos.

Comparing the amnia of mammals, birds, and reptiles shows us that embryos can develop in different ways.

During the first two weeks, the fertilized eggs, aka blastocytes, develop into embryos.

By week three, the embryos are well on their way to developing their organs.

By the end of the fourth week, it is usually possible for a veterinarian to feel the pea sized embryos by palpating the uterus.

The embryos can usually be felt at 28 days after the breeding.

An ultrasound would allow your vet to see any developing embryos.

Fraternal twins are referred to as dizygotic twins, meaning that two unions of two gametes or male/female sex cells occurred to produce two separate embryos.

The chance of multiple gestation with in vitro fertilization (IVF) is about the same as with the use of fertility drugs, because several embryos are inserted into the womb to increase the odds of conception.

With the use of assisted reproductive technology, an ultrasound is usually performed with ten days to see if any of the embryos were successful with implantation, and a multiple gestation would be revealed at that time.

They have transplanted bone marrow cells into living embryos in the uteri of animals to approach congenital diseases, birth defects, and mental retardation.

Embryonic stem cells are derived from human embryos.

Also, some vaccines, including those for influenza, measles, and mumps, are grown in the laboratory in fluids of chick embryos, and should not be given to children who are allergic to eggs.

Only the embryos unaffected by the disease are transferred back into the uterus.

Children who are allergic to eggs should not be give vaccines cultured in chicken embryos.

Cryopreservation, or freezing, of eggs and/or embryos, is a method used to help women overcome secondary infertility and cancer survivor issues.

The embryos are later implanted into the uterus via IVF.

So if you want a boy, have the doctor only implant the male embryos.

This information gives the reader some general information about how many procedures have been conducted, how many used fresh embryos and frozen ones, as well as the percentage of clinics offering services to single women.

The percentage of IVF cycles resulting in pregnancies is listed, as well as the average number of embryos transferred during each cycle.

If the embryos are developing normally, one or two of them will be transferred into the uterus.

The physician uses a catheter to move the embryos through the cervix and into the uterus for development.

Women who are older than 35 might have more than one or two embryos transferred.

The infertility specialist may freeze additional fertilized embryos in case a future treatment cycle is necessary.

By a simple modification, the open pit becomes a solid ectodermal ingrowth, just as in Teleostean fishes the hollow medullary tube, or the auditory pit of other vertebrate embryos, is formed at first as a solid cord of cells, which acquires a cavity secondarily.

Coryne, a common British longed into a brood pouch conhydroid, produces gonophores; taining embryos.

The spadix forms a gelatinous cyst, the so-called acrocyst (ac), external to the gonotheca (gth), enclosing and protecting the embryos.

Nevertheless, though the conceptions originally denoted by " evolution " and " development " were shown to be untenable, the words retained their application to the process by which the embryos of living beings gradually make their appearance; and the terms" development," " Entwickelung,"and " evolutio " are now indiscriminately used for the series of genetic changes exhibited by living beings, by writers who would emphatically deny that " development " or " Entwickelung " or " evolutio," in the sense in which these words were usually employed by Bonnet or Haller, ever occurs.

These are reduced, in all birds, to three, but traces of the fourth have been observed in embryos.

In this way over a hundred embryos may result from a single egg.

Thus in Erythronium and Limnocharis the fertilized egg may form a mass of tissue on which several embryos are produced.

In Coelebogyne (Euphorbiaceae) and in Funkia (Liliaceae) polyembryony results from an adventitious production of embryos from the cells of the nucellus around the top of the embryo-sac. In a species of Allium, embryos have been found developing in the same individual from the egg-cell, synergids, antipodal cells and cells of the nucellus.