testes
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Instead, a subtle form of natural selection within the testes appears to give certain mutations a reproductive advantage, allowing them to become more common during sperm formation.
From Science Daily ● Oct. 19, 2025
If a human embryo has XY chromosomes the SRY gene leads to the formation of testes, which then produce hormones including testosterone that lead to male development - and can increase muscle mass and strength.
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
In one of the robins the concentration of DDT in the testes was heavier than in any other part of the body.
From "Silent Spring" by Rachel Carson
