The male y chromosome has a gene ( sry ) which switches on the development of testis and pumps out male hormones that determine maleness .
y染色体上一个名为sry的基因决定着男性的体征，它决定了是否能长睾丸和产生男性荷尔蒙。
The protein , which was identified at memorial sloan-kettering , is normally absent in tissues after fetal development , except in the testis , but it reappears in about a third of all common cancers .
In male , the immunopositive reaction in spermatogonia , spermatocyte and spermatid to testosterone antibodies strengthened gradually during the development and maturation of testis .
在雄性,随着精巢发育成熟,精原细胞、精母细胞和精子细胞对睾酮抗体的免疫阳性反应逐渐增强.
Investigation of heroin addict testis and epididymis by b-ultrasound .
二维超声对海洛因依赖者的睾丸、附睾观察。
Bradner has high hopes that brd4 inhibitors such as jq1 will become cancer therapies , but he and his colleagues knew that brd4 is also closely related to a protein called brdt , which helps control cell division in the testis .
