【简答题】The proteins that bind to DNA to form eukaryotic chromosomes are traditionally divided into two general classes: the _______ and the nonhistone chromosomal proteins.
【判断题】Two different forms of genes on the same locus of a pair of homologous chromosomes are called alleles.
【单选题】关于广播信道,以下哪一项描述是错误的。
B.
可以用两条广播信道实现三个以上终端之间的全双工通信
【单选题】污染土壤常用修复技术中属于化学修复的是( )。
【单选题】污染土壤常用修复技术中属于化学修复技术的是( )。
【判断题】The ends of eukaryotic chromosomes are capped by long stretches of repetitive sequence called telomeres
【单选题】The sperm-separation technique is based on the fact that the chromosomes responsible for babies' sex ______.
A.
are of different shapes
B.
are of different sizes
【多选题】下列成分中属于呼吸链复合体II的成分是( )