母亲的性状能够遗传给后代,这是通过

初三期考复习

Quiz
•
Science
•
1st - 12th Grade
•
Medium
1041 (Ind)
Used 648+ times
FREE Resource
40 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
卵细胞
精子
受精卵
体细胞内的染色体
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
2.每一种生物细胞核内的染色体数目是一定的.人的体细胞中染色体的数目是( )
46条
36条
23条
64条
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
3.下列关于染色体、DNA、基因关系的叙述,错误的是
DNA在染色体上
基因在DNA上
基因在染色体上
DNA在基因上
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
4.下列物质中,即是人体的组成物质,又是人体的供能物质的是:
淀粉、糖类、维生素
蛋白质、脂肪、无机盐
蛋白质、水、无机盐
糖类、脂肪、蛋白质
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
5.养学专家建议青少年要适当多吃奶、蛋、鱼、肉等富含蛋白质的食品。这是因为蛋白质是
细胞的重要组成成分
主要的供能物质
主要的贮能物质
溶解养分的物质
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6.下列食物中热价最高的是[ ]
大米
鲜牛奶
大白菜
花生
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
7.利用下列哪组消化液,能够很快地清除容器中的油垢( )
唾液、胃液、肠液
胰液和肠液
胰液、肠液、胆汁
胃液和胆汁
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