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Reproductive Cloning

Reproductive Cloning

Reproductive cloning is the process of producing a genetically identical copy—a clone—of an entire organism. While clones can be produced by splitting an early embryo—similar to what happens naturally with identical twins—cloning of adult animals is usually done by a process called somatic cell nuclear transfer (SCNT).
Somatic Cell Nuclear Transfer
In SCNT, an egg cell is taken from an animal and its nucleus is removed, creating an enucleated egg. Then a somatic cell—any cell that is not a sex...

Reproductive Cloning

Reproductive Cloning

Reproductive cloning is the process of producing a genetically identical copy—a clone—of an entire organism. While clones can be produced by splitting an early embryo—similar to what happens naturally with identical twins—cloning of adult animals is usually done by a process called somatic cell nuclear transfer (SCNT).
Somatic Cell Nuclear Transfer
In SCNT, an egg cell is taken from an animal and its nucleus is removed, creating an enucleated egg. Then a somatic cell—any cell that is not a sex...

CRISPR

CRISPR

Genome editing technologies allow scientists to modify an organism’s DNA via the addition, removal, or rearrangement of genetic material at specific genomic locations. These types of techniques could potentially be used to cure genetic disorders such as hemophilia and sickle cell anemia. One popular and widely used DNA-editing research tool that could lead to safe and effective cures for genetic disorders is the CRISPR-Cas9 system. CRISPR-Cas9 stands for Clustered Regularly Interspaced Short...

In Vitro Fertilization

In Vitro Fertilization

In vitro fertilization (IVF) is a form of assisted reproductive technology where an egg is fertilized with sperm in a controlled laboratory environment before transferring the resulting embryo into the uterus. This process is designed to help individuals and couples experiencing difficulties conceiving.
The IVF process begins with ovarian stimulation, during which reproductive endocrinologists prescribe hormonal medications to stimulate the ovaries to produce multiple eggs instead of the single...

Understanding Species and Reproductive Barriers

Understanding Species and Reproductive Barriers

A species is a group of organisms that interbreed and produce fertile offspring. Typically, individuals of the same species appear similar and share common characteristics due to their highly similar genomes. However, not all organisms that look alike are members of the same species. Various mechanisms keep most species discrete. While some mechanisms prevent reproductive behavior and fertilization (pre-zygotic isolation), others prevent the production of fertile offspring after mating has...

Cloning of Dolly the Sheep

Cloning of Dolly the Sheep

The first successfully cloned mammal was Dolly, a sheep, born on 5th July 1996 at Roslin Institute, Scotland. The cloned sheep was named after the American singer Dolly Parton. Dolly lived for seven years and died of respiratory complications, which is speculated to be due to the actual age of her DNA. Because the DNA in cloned cells belongs to an older individual, the cloned individual’s life expectancy may be affected. Indeed, analysis of Dolly’s DNA revealed shorter telomeres than other...

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Related Experiment Video

Updated: Jun 2, 2026

Monitoring Blood Glucose in Mouse Offspring After Intracytoplasmic Sperm Injection

Monitoring Blood Glucose in Mouse Offspring After Intracytoplasmic Sperm Injection

Published on: May 17, 2024

Innovative reproductive technologies: risks and responsibilities.

W Dondorp¹, G de Wert

¹Department of Health, Ethics & Society, Maastricht University, Maastricht, The Netherlands. w.dondorp@maastrichtuniversity.nl

Human Reproduction (Oxford, England)

|April 20, 2011

Summary

This summary is machine-generated.

Assisted reproduction technologies need rigorous evaluation for safety and effectiveness. Responsible innovation demands research, from preclinical studies to long-term follow-up, ensuring patient and child well-being.

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Last Updated: Jun 2, 2026

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Collection of Human Follicular Fluid, Follicle Somatic Cells, and Immature Oocytes from Individuals Undergoing In Vitro Fertilization

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Published on: October 24, 2025

Area of Science:

Reproductive Medicine
Medical Technology Assessment
Bioethics

Background:

Subfertility presents a significant global health challenge.
New assisted reproduction technologies (ART) are often implemented without thorough safety and efficacy assessments.
This lack of evaluation poses risks to patients and offspring health.

Purpose of the Study:

To advocate for a structured research approach to new reproductive technologies.
To emphasize the importance of evaluating the safety and effectiveness of assisted reproduction.
To highlight the need for responsible innovation in reproductive medicine.

Main Methods:

Review of current practices in assisted reproduction technology implementation.
Emphasis on the necessity of preclinical investigations.
Advocacy for rigorous clinical trials and long-term follow-up studies.

Main Results:

New reproductive technologies require comprehensive evaluation before clinical adoption.
Safety concerns encompass both maternal health and the well-being of children born via ART.
A systematic research framework is crucial for responsible innovation.

Conclusions:

The European Society of Human Reproduction and Embryology (ESHRE) is positioned to lead research in reproductive technologies.
Ensuring the safety and effectiveness of assisted reproduction is paramount.
Responsible innovation in fertility treatments necessitates a robust, evidence-based approach.