F 1 females could be backcrossed to the male homozygous recessive parent.
也可用雌性F1与隐性纯合雄性亲本回交.
词典精选例句
The male is distinguished ( from the female ) by its red beak.
由喙部为红色这一特点可以辨认出其为雄性 ( 以区别于雌性 ).
词典精选例句
Oversecretion of the male hormone androgen can also result in thinning hair.
雄性激素分泌过多也会导致头发稀疏。
词典精选例句
Courtship is somewhat vocal with a lot of displaying by the male.
雄性动物在求偶时会尽量展示自己,并发出一些声响。
《柯林斯高阶英汉双解学习词典》
母爱剥夺对雄性成年大鼠行为及纹状体DAT基因表达的影响
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Methods Injured sciatic nerves in 172 male adult SD rats were irradiated by diode laser.
方法172只雄性SD大鼠制成坐骨神经损伤模型,随机分为1个对照组和3个激光照射组,每组42只。
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方法选择健康雄性成年兔30只,按配伍组设计原则分成5组:①生理盐水组(对照组);
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方法成年雄性SD大鼠20只,全麻及无菌条件下取其左侧股骨及胫骨,将骨髓冲入75ml培养瓶中并在诱导培养条件下进行体外扩增分化;
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