testis

In the cell, it binds to other DNA, leading to testis formation, according to the National Library of Medicine.

From Los Angeles Times ● Mar. 26, 2026

Four additional genes are active only in the testis and are essential for sperm production.

From Science Daily ● Mar. 20, 2026

"In humans, differently from other animal species and lower mammalians, testis are located outside of the abdomen. This contributes to the maintenance of an organ temperature 2º to 4° C below core body temperature."

From Salon ● Mar. 28, 2024

By employing advanced sequencing techniques, the researchers identified significant differences in DNA methylation across thousands of regions in both the brain and testis of the affected frogs.

From Science Daily ● Mar. 11, 2024

There are three pairs of spermathecae situated in segments III-V, a testis in V and an ovary in VI.

From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7 "Cerargyrite" to "Charing Cross" by Various

Some can be born with external female genitalia but functioning testes, and are often certified as female at birth and raised as such.

From BBC ● Aug. 31, 2025

In the brain, sexual differentiation starts before birth and results from a combination of sex chromosomes in brain tissue, sex hormones produced by the testes or ovaries and the environment.

From Salon ● Apr. 22, 2025

Researchers found high levels of microplastics in human and dog testes.

From Los Angeles Times ● May 23, 2024

Over the past couple of decades researchers have found that long-distance signaling goes beyond a few glands and organs—the pancreas, thyroid, testes, and ovaries—that spill out familiar hormones such as insulin and testosterone.

From Science Magazine ● May 22, 2024

“Ten males had amounts ranging from 30 to 109 parts per million in the testes, and two females had 151 and 211 parts per million respectively in the egg follicles in their ovaries.”

From "Silent Spring" by Rachel Carson