The testis at spermatogonium phase is small and transparent, and the spermatogenetic cells in seminiferous tubule primarily consist of spermatogonia;
精原细胞期,精巢,白色,生精的生殖细胞以精原细胞为;
The testis at spermatogonium phase is small and transparent, and the spermatogenetic cells in seminiferous tubule primarily consist of spermatogonia;
精原细胞期,精巢,白色,生精的生殖细胞以精原细胞为;
The testis at spermatid phase develops continually, and is deep in color, and the spermatogenetic cells in seminiferous tubule are primarily composed of spermatids.
精细胞期,精巢体积继续增大,颜色加深,生精的生殖细胞以精细胞为;
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