The common fruit fly has an XY intercourse-determination procedure, as do people and many mammals. Human beings and most other mammals have an XY intercourse-determination process: the Y chromosome carries aspects responsible for triggering male growth, creating XY sexual intercourse dedication generally depending on the existence or absence in the https://jbescort85396.wikitelevisions.com/6786204/helping_the_others_realize_the_advantages_of_sex