The study of one type of evidence of evolution is called embryology, the study of embryos. An embryo is an unborn (or unhatched) animal or human young in its earliest phases. Embryos of many different kinds of animals: mammals, birds, reptiles, fish, etc. look very similar and it is often difficult to tell them apart. Many traits of one type of animal appear in the embryo of another type of animal. For example, fish embryos and human embryos both have gill slits. In fish they develop into gills, but in humans they disappear before birth.

This shows that the animals are similar and that they develop similarly, implying that they are related, have common ancestors and that they started out the same, gradually evolving different traits, but that the basic plan for a creature's beginning remains the same.

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Evolution

In the embryonic development of vertebrates, pharyngeal pouches form on the endodermal side between the pharyngeal arches. The pharyngeal grooves (or clefts) form the lateral ectodermal surface of the neck region to separate the arches.

The pouches line up with the clefts,[1] and these thin segments become gills in fish.

The endoderm lines the future auditory tube (Pharyngotympanic Eustachian tube), middle ear, mastoid antrum, and inner layer of the tympanic membrane. Derivatives of this pouch are supplied by Mandibular nerve.

Derivatives include:

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Pharyngeal pouch (embryology) - Wikipedia

The Human Fertilisation and Embryology Act 2008 (c 22) is an Act of the Parliament of the United Kingdom. The Act constitutes a major review and update of the Human Fertilisation and Embryology Act 1990.

According to the Department of Health the Act's key provisions are:[2]

The Bill's discussion in Parliament did not permit time to debate whether it should extend abortion rights under the Abortion Act 1967 to also cover Northern Ireland. The 2008 Act does not alter the status quo.[3]

The Act also repealed and replaced the Human Reproductive Cloning Act 2001.

Originally posted here:
Human Fertilisation and Embryology Act 2008 - Wikipedia

We have identified some areas of law that our experience and discussion with stakeholders suggest may require reform. They could be potential projects for the Programme. We would like to hear your views about these, and whether you think they should form part of our work over the next few years.

Is the law governing surrogacy keeping pace with social change?

Various stakeholders have suggested to us that the law relating to surrogacy should be reviewed and Jane Ellison MP, Under Secretary of State for Health, has indicated her and the Governments support for inclusion of such a project in our 13th Programme consultation.

The main legislation concerning surrogacy is the Surrogacy Act 1985 and (in respect of the making of parental orders) the Human Fertilisation and Embryology Act 2008. The law has struggled to adapt to changes in attitudes, a growing demand for surrogacy arrangements, and an increasing number of overseas surrogacy arrangements. There are a number of issues in the law that may be in need of reform:

We are interested in consultees views on the impact of these issues and whether they would be suitable for review by the Law Commission. We would also like to hear about any specific aspects of surrogacy law that consultees suggest require modification, simplification or reform. Please use this form to send us your comments, and email it to programme@lawcommission.gsi.gov.uk.

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Surrogacy | Law Commission