Final answer:
Urine extracts of post-menopausal women contain hormones essential for ovulation and can be used to treat female infertility, which makes the statement true.
Step-by-step explanation:
The statement that an extract of the urine of post-menopausal women is used to treat infertility is true. This extract contains the hormone Human Menopausal Gonadotropin (hMG), which is a combination of Follicle-Stimulating Hormone (FSH) and Luteinizing Hormone (LH). These hormones are crucial in stimulating ovulation in women, making the extract an effective treatment for some forms of female infertility. This form of treatment is among the advancements in reproductive technology that help individuals overcome infertility issues.