Life Marsha Blackburn asked Ketanji Brown Jackson to define ‘woman.’ Science says there’s no simple answer. March 24, 2022March 25, 2022 Alia E. Dastagir, USA TODAY Comments Off on Marsha Blackburn asked Ketanji Brown Jackson to define ‘woman.’ Science says there’s no simple answer. When Marsha Blackburn asked Ketanji Brown Jackson to define "woman," she wanted a simple answer. Scientists and gender scholars say it doesn't exist.