Look, what huge bolls these are!瞧这棉桃的个儿!Boll weevil : grayish weevil that lays its eggs in cotton bolls destroying the cotton.略带灰色的象鼻虫,在棉铃上产卵以破坏棉花.After a couple of weeks, almost all the infected plants bore cotton bolls...
组蛋白是一类结合在染色体上的蛋白质.Histones are a group of proteins that are associated with chromosomes.组蛋白是涉及到调控基因的蛋白质.Histones are proteins involved in regulating genes turned on and off.组蛋白的特点是大量的翻译后修饰,这些修饰可以影响基因转录.Histones are chara...