The single cell formed immediately after fertilisation, once the genetic information of the egg and sperm have fused.
Changes that occur to DNA that could cause IVF embryos to stop dividing have been identified...
Human cells behaving like those at a crucial embryological milestone have been identified, enabling insights into early development...
The Centre for Bioethics and Harvard Medical School, Massachusetts, presented a fascinating talk on the opportunities for great medical advancements, and grave harm, presented to researchers by CRISPR/Cas9 and other apporaches to genome editing...
It is becoming clear that our gene functions are influenced by a variety of 'epigenetic' factors throughout our lives and even before we are conceived...
Students of bioethics sometimes imagine that the philosophical, moral and legal status of the human embryo is reducible to the single question: 'Is the human embryo a person?'...
Over two weeks in March, four teams reported the self-assembly from stem cells of structures resembling human embryos...
Identical twins may not in fact be genetically identical at birth, according to a new study by researchers in Iceland...
A maternal protein in the embryo can cause long-lasting impacts on development, Australian researchers have found...
The reasons why IVF treatment sometimes results in twin or triplet births — even though only one embryo is used — have been found by the largest study to date on single embryo transfer and multiple pregnancy...
Cutting-edge microscopy has unveiled a structure inside sperm that may play a key role in infertility and birth defects...
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