What is the growing field, particularly within anthropology, that focuses on research into masculinity and femininity as cultural constructs?

Gender studies

Explanation:

Gender studies is an interdisciplinary study, studied mostly in anthropology, focused on gender identity and gender representation analysis. This field covers studies concerning women, feminism, gender, men's studies and LGBT studies. Most times, gender studies covers sexuality studies.

Other disciplines that study gender and sexuality include literature, language, geography, history, political science, sociology, anthropology, cinema, media studies, human development, law, public health and medicine.