Study: More proof a man can never become a woman Scientists find '6,500 genes with activity that is biased toward one sex or the other' Published: 1 hour ago
A biological male can take hormones, surgically alter his body and identify as “female,” but the procedures still won’t make him a woman, according to new evidence found by Israeli researchers.
That’s because there are at least 6,500 genes that contain sex-specific instructions for males and females.
For the study by Israel’s Weizmann Institute of Science, professor Shmuel Pietrokovski and Dr. Moran Gershoni, both researchers from the institute’s Molecular Genetics Department, “looked closely at around 20,000 protein-coding genes, sorting them by sex and searching for differences in expression in each tissue. They eventually identified around 6,500 genes with activity that was biased toward one sex or the other in at least one tissue, adding to the already major biological differences between men and women.”
Among Pietrokovski’s and Gershoni’s findings:
Highly expressed genes found in the skin of men relate to body hair growth.
Men have higher gene expression for muscle building when compared to women.
Women have higher gene expression for storing fat when compared to men.
Men have genes in their mammary glands that scientists believe suppress lactation.
Women have genes that are expressed only in the left ventricle of the heart. One of these genes, which is also linked to calcium absorption, declines with age. Scientists believe the genes protect the heart and stay active in women until menopause, when gene expression is shut down and women experience higher risk of heart disease and osteoporosis.
Women have a gene that’s active in the brain and may help protect them from Parkinson’s disease, which is more common in men.
Scientists also found variation in gene expression in the liver, which likely accounts for differences in the way men and women process drugs.
The new findings are further evidence that biological males cannot simply “transition” into females and vice versa, argues Mat Staver, founder and chairman of Liberty Counsel.