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PETBioNewsGlossaryDNA (deoxyribonucleic acid)

BioNews

DNA (deoxyribonucleic acid)

DNA (deoxyribonucleic acid) is the molecule that encodes genetic information. It contains four different chemicals, or bases, known as A, C, G and T.

Genes and chromosomes are made of DNA.

1943 articles
Image by K Hardy via the Wellcome Collection. Depicts a human embryo at the blastocyst stage (about six days after fertilisation) 'hatching' out of the zona pellucida.
CC BY 4.0
Image by K Hardy via the Wellcome Collection. Depicts a human embryo at the blastocyst stage (about six days after fertilisation) 'hatching' out of the zona pellucida.
News
4 July 2022 • 2 minutes read

Genetic and epigenetic causes of IVF embryo arrest discovered

by Dr George Janes

Changes that occur to DNA that could cause IVF embryos to stop dividing have been identified...

Image by Bill McConkey via the Wellcome Collection. Depicts sperm swimming towards an egg.
CC BY 4.0
Image by Bill McConkey via the Wellcome Collection. Depicts sperm swimming towards an egg.
News
4 July 2022 • 2 minutes read

Dutch donor-conceived people seek answers

by BioNews

A Dutch fertility doctor has been found to be the genetic father of at least three patients conceived in his clinic...

Image by Peter Artymiuk via the Wellcome Collection. Depicts the shadow of a DNA double helix, on a background that shows the fluorescent banding of the output from a DNA sequencing machine.
CC BY 4.0
Image by Peter Artymiuk via the Wellcome Collection. Depicts the shadow of a DNA double helix, on a background that shows the fluorescent banding of the sequencing output from an automated DNA sequencing machine.
News
4 July 2022 • 2 minutes read

Genetic variant increases Alzheimer's risk, especially in women

by Catherine Turnbull

A gene has been identified which could play a role in increasing the risk of women developing Alzheimer's disease...

Image by Peter Artymiuk via the Wellcome Collection. Depicts the shadow of a DNA double helix, on a background that shows the fluorescent banding of the output from a DNA sequencing machine.
CC BY 4.0
Image by Peter Artymiuk via the Wellcome Collection. Depicts the shadow of a DNA double helix, on a background that shows the fluorescent banding of the sequencing output from an automated DNA sequencing machine.
Reviews
4 July 2022 • 3 minutes read

Book Review: Why DNA? – From DNA sequence to biological complexity

by BioNews

Prior to 2020, genetic mutations weren't something that regularly made the news. Now, two-and-a-half years out from the onset of the COVID-19 pandemic, new genetic variants continue to hit the headlines, and genomic mutations – in a virus, at least – are something the public are much more aware of...

Image by Matthew Daniels via the Wellcome Collection. Depicts human cells, showing the stages of cell division.
CC BY 4.0
Image by Matthew Daniels via the Wellcome Collection. Depicts human cells showing the stages of cell division (starting with interphase at the top and progressing anticlockwise, the stages shown are prophase, prometaphase, metaphase, early anaphase, anaphase and telophase).
Reviews
27 June 2022 • 4 minutes read

Podcast Review: Genetics Unzipped – Have a heart, the science of xenotransplantation

by Dr Malena Daich Varela

A recent episode of Genetics Unzipped 'Have a heart: the science of xenotransplantation' talked about the process of transplanting organs from animals into human bodies...

Image by Bill McConkey via the Wellcome Collection. Depicts sperm swimming towards an egg.
CC BY 4.0
Image by Bill McConkey via the Wellcome Collection. Depicts sperm swimming towards an egg.
Reviews
20 June 2022 • 5 minutes read

Documentary Review: Our Father

by Susan Tranfield-Thomas

'I walk around, and I could be related to anyone' says Jacoba Ballard, a donor-conceived adult, of her neighbourhood in Indianapolis...

Image by Matthew Daniels via the Wellcome Collection. Depicts human cells, showing the stages of cell division.
CC BY 4.0
Image by Matthew Daniels via the Wellcome Collection. Depicts human cells showing the stages of cell division (starting with interphase at the top and progressing anticlockwise, the stages shown are prophase, prometaphase, metaphase, early anaphase, anaphase and telophase).
Reviews
20 June 2022 • 4 minutes read

Podcast Review: How Far Could Genome Editing Go?

by Clíona Farrell

The BBC's CrowdScience podcast calls on listeners to ask the scientific questions they've always wanted answered, from medicine, to the Earth and beyond. In the latest episode of the series, host Caroline Steel delves into the world of genome editing, from success stories in the clinic, to the pragmatic ethical concerns...

Image by Bill Sanderson via the Wellcome Collection, © Wellcome Trust Ltd 1990. Depicts Laocoön and his family (from Greek and Roman mythology) entwined in coils of DNA.
Image by Bill Sanderson via the Wellcome Collection, © Wellcome Trust Ltd 1990. Depicts Laocoön and his family entwined in coils of DNA (based on the figure of Laocoön from Greek and Roman mythology).
Comment
20 June 2022 • 6 minutes read

An adaptive act: How should human fertilisation and embryology legislation respond to scientific and technological change?

by Julian Hitchcock

How responsive is the Human Fertilisation and Embryology Act to the pace of social and technological change? In this comment, Julian Hitchcock contemplates revision of the Act, and how might we optimise its responsiveness to clinical need while upholding standards...

Image by Bill McConkey via the Wellcome Collection. Depicts sperm swimming towards an egg.
CC BY 4.0
Image by Bill McConkey via the Wellcome Collection. Depicts sperm swimming towards an egg.
Reviews
13 June 2022 • 3 minutes read

Podcast Review: The Outlook – The shocking truth about my three dads

by Dr Elpida Fragouli

Dr Elpida Fragouli listened to this BBC podcast about a Texan woman who found out her genetic father was her mother's fertility doctor...

Image by K Hardy via the Wellcome Collection. Depicts a human embryo at the blastocyst stage (about six days after fertilisation) 'hatching' out of the zona pellucida.
CC BY 4.0
Image by K Hardy via the Wellcome Collection. Depicts a human embryo at the blastocyst stage (about six days after fertilisation) 'hatching' out of the zona pellucida.
Comment
13 June 2022 • 5 minutes read

Fertility Frontiers: What Is a 'Permitted' Embryo in Law?

by Dr Antony Starza-Allen

The question of what is a 'permitted embryo' under the legislation governing assisted reproduction in the UK has received increasing scrutiny as technological progress challenges the concept of embryohood...

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