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The principle of natural selection posits that organisms better adapted to their environment are more likely to survive and reproduce. This principle is closely intertwined with mating preferences, a key aspect of sexual selection, which evolutionary psychologists believe is driven by instincts to propagate one's genes. Such instincts significantly influence mating behaviors and preferences between genders.
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Using Mouse Oocytes to Assess Human Gene Function During Meiosis I
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Shaping Future Children, Sex Selection, and "Normal" Human Capacities.

Robert Sparrow1

  • 1Department of Philosophy, Faculty of Arts, Monash University, Melbourne, Australia.

Bioethics
|June 19, 2026
PubMed
Summary
This summary is machine-generated.

Parents may feel obligated to select a child's sex if they abandon the goal of a healthy child. Defining "healthy" is crucial for ethical genetic selection, acknowledging both male and female infants can be healthy.

Keywords:
disabilityhealthhuman enhancementsexsex selection

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Area of Science:

  • Bioethics
  • Reproductive Technology
  • Medical Ethics

Background:

  • Parental obligations regarding child health are debated.
  • Genetic selection technologies raise ethical questions about desired child traits.
  • The concept of a "healthy child" is central to these discussions.

Purpose of the Study:

  • To explore the ethical implications of genetic selection for child sex.
  • To examine the role of "normal human health" in genetic selection decisions.
  • To analyze the contested significance of sex in medicine and social policy.

Main Methods:

  • Philosophical analysis of ethical obligations in procreation.
  • Examination of arguments surrounding human enhancement and genetic selection.
  • Conceptual analysis of "normal human health" in the context of sex differences.

Main Results:

  • Abandoning the "healthy child" standard in genetic selection may obligate parents to prefer one sex over another.
  • A bifurcated concept of "normal human health" is necessary to avoid sex-based selection preferences.
  • Sex selection ethics are intertwined with broader debates on the normative significance of sex.

Conclusions:

  • The definition of "normal human health" is critical for navigating the ethics of sex selection.
  • Recognizing both male and female infants as potentially healthy is essential for ethical genetic selection.
  • Contested intuitions about the significance of sex impact reproductive ethics and policy.