种间杂交的主要障碍是F1代的不育性.A major barrier to interspecific hybridization is sterility in the F 1 progeny.那是一株杂交的四季开花的蔷薇.That is a hybrid perpetual rose.骡子是一种杂交的变态产物, 本来是不该饲养的.Mules are misbegotten, unnatural critters and it ough...
Get a part of Music Americana right here!Get的音乐美洲的一部分就在这里!Bioactivities of MiEM to cockroach ( Periplaneta Americana ) were assayed after mature peptide folding correctly.合成的线性肽经氧化折叠纯化后,用于测试其对环境害虫蟑螂 ( Periplanetaamerican...