Sentences with phrase «by gamete»

Parenting Infants Conceived by Gamete Donation..

Indeed, orgasm is the kind of experience that could have been invented by gametes (reproductive cells).

Not exact matches

The National Gamete Donation Trust (NGDT), in partnership with Birmingham Women's Hospital, has been awarded # 77,000 by the Department of Health (DoH) to provide the service, which will launch in October.

There are a few points in the book in which it would appear that the authors depart from their own sense of what is licit and illicit out of deferrence to certain academic Catholic bioethicists who persist in arguing for the permissibility of so - called «borderline» assisted reproductive techniques such as Gamete Intra Fallopian Transfer (GIFT) and Artificial Insemination by Husband (AIH) or insist that the Church may still allow for so - called embryo adoption.

The further I get into it the more parallels I see between challenges in parenting via traditional adoption and parenting after conception by donor gametes.

However, when meiotic drive genes are at work, they can stack the odds in their favor by destroying the gametes that don't carry them.

As part of these ongoing research activities, the DNA of Dravet patients without SCN1A mutations was analyzed by trio exome sequencing, which searches across the active parts of the genome for de novo mutations that have arisen in these patients (de novo mutations are DNA copying errors that occur in the parents» gametes or in the fertilized egg or embryo, resulting in the afflicted family member being the first person in their family to have this genetic condition).

From earlier work by the group, they knew that the larger centromeres were known to transmit preferentially to the gametes.

The board is supposed to make sure no one is harmed by the research, including gamete donors who might not like their embryos used for research.

During meiosis, the genome of a diploid germ cell, which is composed of long segments of DNA packaged into chromosomes, undergoes DNA replication followed by two rounds of division, resulting in haploid cells called gametes.

Our work shows that farm fish are as potent at the gamete level as wild fish, and if farm escapes can revive their spawning behaviour by a period in the wild, clearly pose a significant threat of hybridisation with wild populations.»

By transmitting the genetic information to the next generation and marking the beginning of a new life, the encounter between female and male gametes at fertilisation is one of the most fundamental processes in biology.

By that time, the sex - inducing gene was active and the volvox began making male and female gametes instead of asexual ones, the group reports online 9 June in the Proceedings of the Royal Society, London, B.

Not only do many of the ethical challenges posed by embryonic stem cells remain, but the relative ease and low cost of iPS techniques, combined with the accessibility of cells, accelerate the need to address futuristic - sounding possibilities such as creating gametes for reproduction.

When gametes are expelled, sperm are attracted by a chemical cue and swim rapidly to one pole of the egg (bottom left) in order to fertilize it.

Double fertilization of the female gametes triggers an unusual cell fusion, followed by specific cell disorganization that inactivates the cell responsible for attracting pollen tubes.

«Through examination of Arabidopsis ovules by highly sensitive live - imaging, we were able to see that successful fertilization of the two female gametes triggers an unprecedented cell fusion between the persistent synergid cell and the endosperm (SE fusion), which eventually leads to inactivation of the persistent synergid cell.»

Sexual reproduction in flowering plants occurs by fertilization of the female gamete (a reproductive cell) by a male gamete.

When shaken in the lab, or when thrashed by turbulent currents in its natural habitat, the seaweed's two sexes hold on to their gametes, releasing them only when the water is tranquil.

In an era of changing laws about the rights of gamete donors, this opens their relationship to possible intervention by the sperm donor if he decides he wants to play a role in raising the child.

This synchronous gamete release of thousands of animals over vast stretches of reef is thought to be cued by rhythms of the Moon.

Maternally expressed MEG3 is regulated by a intergenic differentially methylated region in human gametes and embryos [38].

The provider can state the maximum storage period, up to 10 years, although this can be extended up to a maximum of 55 years by the Human Fertilisation and Embryology Authority (HFEA) if the requirements set out in the Human Fertilisation and Embryology (Statutory Storage Period for Embryos and Gametes) Regulations 2009 (SI 2009/1582) are met.

The outcomes (no to a reduction in the 24 - week limit for «social abortions»; yes to animal - human hybrid embryos; yes to «true hybrids» created by fusion of an animal gamete and a human gamete; yes to saviour siblings; and no to a requirement to consider the need for a father when considering IVF) have been headline news.

The further I get into it the more parallels I see between challenges in parenting via traditional adoption and parenting after conception by donor gametes.

Prompted by legislation in Victoria, Australia, permitting gamete donors to seek identifying details of people conceived from their gametes, this research investigated the views of adolescents from the general population on how parents can best talk to their donor - conceived adolescent children about their conception.