Am I related to a virus?
All living things are related to each other, from elephants to algae, e-coli to humans like us. Within our cells we hold genetic information in the form of DNA or RNA. But despite viruses sharing these molecules, many scientists don't consider them to be 'life'. \nViruses cannot reproduce on their own, but some can insert their DNA into a host to pass genes sideways through the branching tree of life. As a result, viruses\u2019 relationship with life is.... complex.
Two of our listeners had viruses on the mind, so they sent in the same question to CrowdScience. Senan from Singapore and Melvin from South Africa want to know how viruses began to see if this can tell us whether they shared a common ancestor with humans.
To dig into this complexity Marnie Chesterton speaks with an expert on Koala genetics \u2013 Dr Rachael Tarlinton. Koalas are in the middle of tackling a retroviruses, a type of virus that plants DNA into our cells as a reproduction strategy. Her research could reveal why humans life has so much viral DNA within our genomes.
Marnie speaks with a computational biologist Professor Gustavo Caetano-Anolles, who has found a new way to trace the family tree for billions of years using proteins common to all life on earth, and speaks with Professor Chantal Abergel who paints a picture of how viruses went from being the losers of evolution, to being highly successful parasites of cells.
If you have a question for CrowdScience, please email: crowdscience@bbc.co.uk
Produced by Rory Galloway \nPresented by Marnie Chesterton
Contributors: \nDr Chelsey Spriggs - Postdoctoral fellow at the University of Michigan in the USA\nDr Rachael Tarlinton - Associate Professor at the University of Nottingham in the UK\nProfessor Gustavo Caetano-Anolles - The University of Illinois in Urbana Champagne, USA\nProfessor Chantal Abergel - Aix Marseille Universit\xe9 in France \nGraeme Dick - Head Keeper, Longleat Zoo and Safari Park, UK