Is the Y Chromosome Disappearing?

Scientists know that the Y chromosome has been shrinking in size over millions of years, but recent studies suggest that it has more important genes, besides the ones that cause biological maleness. Hosted by: Michael Aranda ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters -- we couldn t make SciShow without them! Shout out to Justin Ove, Andreas Heydeck, Justin Lentz, Will and Sonja Marple, Benny, Chris Peters, Tim Curwick, Philippe von Bergen, Patrick, Fatima Iqbal, Lucy McGlasson, Mark Terrio-Cameron, Accalia Elementia, Kathy & Tim Philip, charles george, Kevin Bealer, Thomas J., and Patrick D. Ashmore. ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://ghr.nlm.nih.gov/chromosome/Y http://evolution.berkeley.edu/evolibrary/news/140513_ychromosome http://www.sciencemag.org/news/2014/04/y-chromosome-more-sex-switch https://ghr.nlm.nih.gov/primer/basics/howmanychromosomes https://www.genome.gov/27557513/the-y-chromosome-beyond-gender-determination/ http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4120474/ http://www.ncbi.nlm.nih.gov/pubmed/24759411 http://www.nature.com/nature/journal/v508/n7497/full/nature13151.html https://ghr.nlm.nih.gov/gene/SRY