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Glossary

Y chromosome

One of two sex chromosomes that are the main determinant gender. Human males have an X and Y chromosome, whereas females have two X chromosome.



Articles using this Glossary Item

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Sperm from stem cells could help some types of male infertility

21 August 2017 - by Shaoni Bhattacharya

Cells from genetically infertile male mice have been turned into sperm, and used to produce healthy pups... [Read More]

X chromosome may offer females protection against cancer

28 November 2016 - by Anna Leida

Having two copies of the X chromosome may help explain why females get cancer less often than males, according to new research... [Read More]

Growing sperm in the lab: an embryonic science

07 March 2016 - by Dr Dusko Ilic

A recent announcement that scientists had created functioning spermatozoids from mouse embryonic stem cells in the lab made quite a splash in the media. However, one key point seemed to be overlooked... [Read More]

Y chromosomes of gorillas could answer questions about male infertility

07 March 2016 - by Dr Katie Howe

A new DNA-sequencing method has been developed, which has been used to determine the sequence of the gorilla Y chromosome... [Read More]

Prenatal test detects cancer in mothers

20 July 2015 - by Ceri Durham

Abnormal results from a non-invasive prenatal test for fetal chromosome abnormality may indicate the presence of previously undetected cancers in some mothers.... [Read More]

DNA links Kennewick Man to Native Americans

22 June 2015 - by Dr Julia Hill

New DNA evidence has reignited a longstanding debate over the ownership of a 9000-year-old skeleton, known as Kennewick Man... [Read More]

Event Review: Pint of Science Festival - From Sticky Sperm to Sugary Doughnuts

26 May 2015 - by Natalie Moska

Last week I attended a Pint of Science session entitled 'Sugar and Sperm' held at a floating pub on Albert Embankment in London - part of a worldwide festival hosting more than 600 evenings of science in 50 cities and eight countries as far afield as Australia and the USA... [Read More]

Smoking can 'erase' the Y chromosome

15 December 2014 - by Arit Udoh

Smoking can accelerate the loss of the Y chromosome in blood cells, a study claims... [Read More]

Polygamy left its mark on human genome

29 September 2014 - by Dr Victoria Burchell

The rise of the single mother may seem a rather modern phenomenon. But even before the first humans walked out of Africa 70,000 years ago, mothers have consistently outnumbered fathers, DNA analysis suggests... [Read More]

Myth replacement therapy: MPs debate the science of mitochondria

08 September 2014 - by Dr Ted Morrow

The regulatory path to clinical trials of mitochondrial replacement therapy was recently debated in the House of Commons. While scientists are still unsure how genes and genomes cause disease and impact on our physical appearance and personality, there are clearly misconceptions about mitochondrial genetics repeated during the debate that are not supported by current scientific evidence... [Read More]

Skin cells from infertile men transformed into early-stage sperm

06 May 2014 - by Siobhan Chan

Skin tissue from infertile men has been converted into sperm cell precursors after their stem cells were transplanted into mice... [Read More]

Male chromosome not dying out, say researchers

13 January 2014 - by Matthew Thomas

The human Y chromosome may have some use, after all. Experts previously thought that the chromosome containing 'male' genes was shrinking to the point of extinction... [Read More]

Last man standing: just two Y-chromosome genes needed for reproduction

25 November 2013 - by Dr Naqash Raja

Male mice are able to reproduce healthy offspring with only two Y-chromosome genes, researchers at the University of Hawaii have discovered... [Read More]

'Female chromosome' might make a man a man

29 July 2013 - by Clara Salice

The 'female' X chromosome has been shown to contain several genes that may be involved in sperm production... [Read More]

Privacy risk: researchers identify 'anonymous' DNA donors

21 January 2013 - by Simon Hazelwood-Smith

A US team of researchers has shown it is possible to link whole genome sequence data to a specific person, using only publicly available information.... [Read More]

Event Review: Marcus Brigstocke Invites Mark Thomas

25 June 2012 - by Maria Botcharova

How are we different from animals? Comedian Marcus Brigstocke met evolutionary geneticist Professor Mark Thomas at the Cheltenham Science Festival, and asked him about what makes humans so human. Their marvellously informative discussion of human achievement covered art, religion, Adam and Eve, and how they all tie into our genes.... [Read More]

Men might escape extinction according to monkey Y chromosome study

27 February 2012 - by Ruth Saunders

Men may not be on the brink of extinction after all, according to a study on the evolution of the human Y chromosome. Previous research has suggested that the Y sex chromosome, carried only by men, is decaying genetically at such a rate that men would become extinct in five million years' time... [Read More]

Gene passed from father to son added to list of heart disease risks

13 February 2012 - by Dr Zara Mahmoud

A sixth of men have a genetic variant which could increase their risk of heart disease by up to 56 percent, according to a recent study... [Read More]

TV Review: Me, My Sex and I

17 October 2011 - by Daniel Malynn

'Me, My Sex and I' is a documentary about people who are born neither entirely male nor female. I must state at the outset that this programme is about the sex of the individual, and should not be confused with gender, which is how people identify themselves (something that many other TV reviews have got wrong in describing this programme). As the show makes clear, sex is not an 'either or' for many people; the real buzz word here is 'ambiguous'.... [Read More]

'Man flu' - do women just have stronger immune systems?

03 October 2011 - by George Frodsham

Genetic differences between men and women could mean that women are better at resisting certain infections and diseases than men, a new study suggests. The second X chromosome in women gives them an immunological advantage over men, possibly giving credence to man's perceived susceptibility to 'man-flu'.... [Read More]

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