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What is Natural Selection?01:32

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Natural selection is an evolutionary process in which individuals with survival-promoting traits reproduce at higher rates. These favorable traits become more common within a population or species. Naturally selected traits initially arise via random genetic mutations. In order for selection to occur, there must be variation within a population, the trait controlling the variation must be heritable, and there must be an evolutionary advantage for variation in the trait.
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In an open-loop system, such as a basic thermostat, the poles of the transfer function influence the system's response but do not determine its stability. However, when feedback is introduced to form a closed-loop system, such as an advanced thermostat that adjusts heating based on room temperature, stability is governed by the new poles of the closed-loop transfer function.
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Embryo selection and democratic control.

Joep Geraedts1

  • 1Maastricht University Medical Centre, PO Box 5800, 6202 AZ Maastricht,The Netherlands.

Molecular Human Reproduction
|February 7, 2018
PubMed
Summary
This summary is machine-generated.

The Netherlands has a 30-year-old system for collecting data on embryo and fetus selection. This existing data collection allows for democratic oversight of genetic selection practices.

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Area of Science:

  • Medical Ethics
  • Reproductive Technologies
  • Public Health Policy

Background:

  • Calls for systematic data collection on embryo and fetus selection are increasing.
  • Such data is proposed to assess trends and social impacts of selection technologies.
  • Concerns exist regarding the ethical implications and societal effects of human selection.

Purpose of the Study:

  • To highlight the existence of a long-standing data collection system in the Netherlands for embryo and fetus selection.
  • To demonstrate that such practices can be monitored and subject to democratic control.
  • To provide a model for other jurisdictions considering similar data collection.

Main Methods:

  • Systematic data collection on embryo and fetus deselection per institution.
  • Data monitoring by the Dutch Minister of Public Health, Welfare and Sports.
  • Expansion of data collection to include preimplantation genetic diagnosis.
  • Parliamentary discussion of collected data for over 8 years.

Main Results:

  • The Netherlands has over 30 years of systematic data on prenatal diagnosis.
  • Data collection was extended to preimplantation genetic diagnosis.
  • Parliamentary review indicates democratic oversight of embryo selection is feasible.
  • Existing practices allow for retrospective assessment of selection trends.

Conclusions:

  • A robust system for monitoring embryo and fetus selection already exists in the Netherlands.
  • This established system facilitates democratic control over reproductive technologies.
  • The Dutch model demonstrates a viable approach for assessing and managing the societal impact of genetic selection.