网织红细胞
在中幼红细胞后期和晚幼红细胞中血红蛋白逐渐合成增多,细胞核则渐渐退化,晚幼红细胞已失去DNA的复制能力,细胞已不再能分裂和增殖,网织红细胞中细胞核已经消失,还残留有一些核糖核酸(RNA),用煌焦油蓝染色时显微镜下看到细胞内网状结构,故称网织红细胞。
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