DNA can solve all sorts of mysteries, including the sometimes thorny question of paternity. ktsdesign/Shutterstock June 27, 2021 Sex, lies and DNA: why many ‘Bothas’ in South Africa have the wrong surname Jaco Greeff, University of Pretoria A lie about children’s paternity back in 1700 means tens of thousands of South Africans today are using the wrong surname.
The biology of same-sex attraction seems to involve a host of genes. Dewald Kirsten/Shutterstock August 29, 2019 ‘Gay gene’ search reveals not one but many – and no way to predict sexuality Brendan Zietsch, The University of Queensland The largest study of its kind - comparing the genetic sequences of almost half a million people - has revealed many different parts of our genetic code that seem to influence same-sex sexual behaviour.
People with a certain gene have an adverse reaction to the antiretroviral efavirenz. Shutterstock January 29, 2017 How a gene test can solve side effects linked to ARV drugs in Africa Collen Masimirembwa, University of Cape Town Up to 50% of the people who take the efavirenz antiretroviral react particularly badly to it and need to change drug regimens.