抗VD佝偻病是X染色体显性遗传病,下列哪项不是该病的遗传特点()...
Tuesday, September 13, 2022
Tuesday, September 13, 2022
Sunday, September 11, 2022
下列不属于癌细胞重要特征的是()A、细胞能无限增殖B、细胞具有浸润性和扩散性C、细胞能逃避免疫监视D、细胞水分减少,体积变小...
Friday, April 21, 2023
Tuesday, September 13, 2022
下列包括促进血糖升高的激素最全的一组是()①胰岛素②胰高血糖素③...
Sunday, September 11, 2022
甘氨酸和丙氨酸最多能形成二肽()A、1种B、2种C、4种D、6种...
Friday, July 7, 2023
Tuesday, September 13, 2022
Sunday, September 11, 2022
Tuesday, September 13, 2022
小陈在观察成熟叶肉细胞的亚显微结构照片后得出如下结论,不正确的是()。A、叶绿体和线粒体都有双层膜B、核糖体附着在高尔基体上C、内质网膜与核膜相连D、液泡是最大的细胞器...
Tuesday, March 19, 2024
Sunday, September 11, 2022
Sunday, September 11, 2022
Sunday, September 11, 2022
由120个碱基组成的DNA分子片段,可因其碱基对组成和序列的不同...
Sunday, September 11, 2022
Tuesday, September 13, 2022
将某植物花冠切成大小和形状相同的细条,分为a、b、c、d、e和f...
Sunday, September 11, 2022