Genetics

“A Linkage Between DNA Markers on the X Chromosome and Male Sexual Orientation” (1993), by Dean H. Hamer and Charles A. Thomas.

The link Between DNA Markers on the X Chromosome and Male Sexual Orientation (1993)

In 1993, Dean H. Hamer and colleagues in the US published results from their research that indicated that men with specific genes were more likely to be homosexual than were men without those genes. The study hypothesized that some X chromosomes contain a

"The Familial Factor in Toxemia of Pregnancy" (1968), by Leon C. Chesley, et al.

The Familial Factor in Toxemia of Pregnancy by Leon C. Chesley, John Annitto, and Robert A. Cosgrove

In the 1950s and 1960s, researchers Leon Chesley, John Annitto, and Robert Cosgrove investigated the possible familial factor for the conditions of preeclampsia and eclampsia in pregnant women. Preeclampsia and eclampsia, which are related to high blood pressure, have unknown causes and affect at least five percent of all pregnancies.

Leon Chesley (1908-2000)

Leon Chesley (1908-2000)

Leon Chesley studied hypertension, or high blood pressure, in pregnant women during the mid-twentieth century. Chesley studied preeclampsia and eclampsia, two hypertensive disorders found in approximately five percent of all US pregnancies. In New Jersey and New York, Chesley devoted over forty years to researching preeclampsia and eclampsia, and conducted several long-term studies using the same group of women beginning from their pregnancies. Chesley's

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