pachytene spermatocyte粗线期精母细胞
pachytene stage[细胞] 粗线期;粗丝期;粗线期
pachytene chromosome粗线期染色体
early pachytene早粗线期
pachytene karyotype粗线期核型
Pachytene bivalents二价染色体;条粗线期
pachytene cytology粗线期细胞学
pachytene dna粗线期DNA
N（名词） the third stage of the prophase of meiosis during which the chromosomes become shorter and thicker and divide into chromatids 粗线期; 细胞减数分裂前期的第三期，其间配对的染色体变得粗短并分裂成染色单体