Chromosome That Leads to Birth of Men is Degrading Rapidly

by Kathy Jones on April 5, 2013 at 7:35 PM
 Chromosome That Leads to Birth of Men is Degrading Rapidly

An American geneticist claimed that the Y chromosome, which leads to the birth of boys, is degrading rapidly and will disappear over time even if humans still continue to exist.

Jenny Graves from Canberra University's Institute for Applied Ecology, said that the process is likely to happen within the next five million years but could have begun in some isolated groups, the Herald Sun reported.


Graves, who first made the prediction some years ago, has been studying sex-determining genes in Australian animals so as to shed light on human genetics.

She said that people think that sex is so important that it wouldn't change a lot but it changes all over the place and the Y chromosome sort of self-destructs.

Y is always in the male and is active mostly in the testicles to make sperm.

Graves asserted that is a "very dangerous" place as there is a lot of cell division going and with every split there is a chance for a mutation or gene loss.

She said that the X chromosome is all alone in the male, but in the female it has a friend so it can swap bits and repair itself but if the Y gets a hit it's a downward spiral.

Graves said that the X has about 1000 genes left, too many relating to sex and intelligence and the smaller Y started with about 1700 genes but only has 45 left, and that's mostly "junk."

She added that if humans don't become extinct, new sex-determining genes and chromosomes will evolve, maybe leading to the evolution of new hominid species similar to what happened in the Japanese spiny rat, which had survived the loss of its Y.

Source: ANI
Font : A-A+



Recommended Readings

Latest Genetics & Stem Cells News

New Gene Therapy to Treat Genetic Brain Disorder
NGN-401 is a first ever new gene therapy discovered to cure a rare genetic brain disorder called Rett Syndrome.
Early-Stage Stem Cell Trial for Progressive Multiple Sclerosis
Among MS patients, the stem cells showed a neuroprotective role, guarding nerve cells from further decline.
Human Genetics Unravels Mysteries of Digestive Disorders
New possibilities for research on digestive diseases have been set by complete decoding of the Y chromosome.
World's First CRISPR-Based Gene Therapy for Blood Disorders
UK has given the green light to the world's inaugural gene therapy for sickle-cell disease and thalassemia.
Genotype Linked to Short-Lifespan Affects 1 in 25 People
1 in 25 people had a genotype linked to short lifetime, which includes BRCA2 and LDLR genes, that reduced lifespan by seven years, and six years respectively.
View All
This site uses cookies to deliver our services.By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Use  Ok, Got it. Close

Chromosome That Leads to Birth of Men is Degrading Rapidly Personalised Printable Document (PDF)

Please complete this form and we'll send you a personalised information that is requested

You may use this for your own reference or forward it to your friends.

Please use the information prudently. If you are not a medical doctor please remember to consult your healthcare provider as this information is not a substitute for professional advice.

Name *

Email Address *

Country *

Areas of Interests