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一、选择题1.(江苏生物卷-5)下列有关生物体遗传物质的叙述,正确的是()A.豌豆的遗传物质主要是DNAB.酵母菌的遗传物质主要分布在染色体上C.T_2噬菌体的遗传物质含有硫元素D.HIV的遗传物质水解产生4种脱氧核苷酸解题思路:豌豆的遗传物质是DNA,并非“主要是”。酵母菌的遗传物质(DNA)主要分布在染色体上,少量在线粒体中。T_2噬菌体的遗传物质是DNA,含C、H、0、N、P,蛋白质外壳含硫元素。HIV的遗传物质是RNA,水解产生4种核糖核苷酸。
First, the multiple choice questions 1. (Jiangsu biological volume -5) The following description of the organism genetic material, the correct () A. Pea genetic material is mainly DNA B. Saccharomyces yeast genetic material is mainly distributed in the chromosome C.T_2 Phage genetic material containing sulfur element D. HIV genetic material hydrolysis of four kinds of deoxynucleotide problem-solving ideas: pea genetic material is DNA, not “mainly ”. Yeast’s genetic material (DNA) is mainly distributed in the chromosome, a small amount of mitochondria. T_2 phage genetic material is DNA, containing C, H, 0, N, P, protein shell containing sulfur elements. The genetic material of HIV is RNA, hydrolyzed to produce four ribonucleotides.