试管婴儿可以说是现代生物科技的杰出成果，下列对其生物学原理及技术的叙述，不正确的是

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• 1在“DNA的粗提取和鉴定”实验中，甲、乙、丙、丁四个小组除下表中所列处理方法不同外，其他操作步骤均正确，但实验结果却不同。下列有关叙述正确的是 <table style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-COLLAPSE: collapse; BORDER-TOP: medium none; BORDER-RIGHT: medium none; mso-padding-alt: 0cm 5.4pt 0cm 5.4pt; mso-border-alt: solid windowtext .5pt; mso-yfti-tbllook: 480; mso-border-insideh: .5pt solid windowtext; mso-border-insidev: .5pt solid windowtext" border="1" cellspacing="0" cellpadding="0" _dj="MsoNormalTable"><tbody><tr style="HEIGHT: 29.05pt; mso-yfti-irow: 0; mso-yfti-firstrow: yes"><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 35.1pt; PADDING-RIGHT: 5.4pt; HEIGHT: 29.05pt; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt" width="47">组别</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 41.6pt; PADDING-RIGHT: 5.4pt; HEIGHT: 29.05pt; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt" width="55">实验材料</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 86.4pt; PADDING-RIGHT: 5.4pt; HEIGHT: 29.05pt; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt" width="115">提取核物质时加入的溶液</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 102.1pt; PADDING-RIGHT: 5.4pt; HEIGHT: 29.05pt; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt" width="136">去除杂质时加入的溶液</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 81.1pt; PADDING-RIGHT: 5.4pt; HEIGHT: 29.05pt; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt" width="108">DNA鉴定时加入的试剂</td></tr><tr style="HEIGHT: 17.4pt; mso-yfti-irow: 1"><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 35.1pt; PADDING-RIGHT: 5.4pt; HEIGHT: 17.4pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-top-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt" width="47">甲</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 41.6pt; PADDING-RIGHT: 5.4pt; HEIGHT: 17.4pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt" width="55">鸡血</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 86.4pt; PADDING-RIGHT: 5.4pt; HEIGHT: 17.4pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt" width="115">蒸馏水</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 102.1pt; PADDING-RIGHT: 5.4pt; HEIGHT: 17.4pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt" width="136">95%的酒精（30℃）</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 81.1pt; PADDING-RIGHT: 5.4pt; HEIGHT: 17.4pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt" width="108">二苯胺</td></tr><tr style="HEIGHT: 16.4pt; mso-yfti-irow: 2"><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 35.1pt; PADDING-RIGHT: 5.4pt; HEIGHT: 16.4pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-top-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt" width="47">乙</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 41.6pt; PADDING-RIGHT: 5.4pt; HEIGHT: 16.4pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt" width="55">菜花</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 86.4pt; PADDING-RIGHT: 5.4pt; HEIGHT: 16.4pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt" width="115">蒸馏水</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 102.1pt; PADDING-RIGHT: 5.4pt; HEIGHT: 16.4pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt" width="136">95%的酒精（冷却）</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 81.1pt; PADDING-RIGHT: 5.4pt; HEIGHT: 16.4pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt" width="108">甲基绿</td></tr><tr style="HEIGHT: 14.65pt; mso-yfti-irow: 3"><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 35.1pt; PADDING-RIGHT: 5.4pt; HEIGHT: 14.65pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-top-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt" width="47">丙</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 41.6pt; PADDING-RIGHT: 5.4pt; HEIGHT: 14.65pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt" width="55">猪血</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 86.4pt; PADDING-RIGHT: 5.4pt; HEIGHT: 14.65pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt" width="115">蒸馏水</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 102.1pt; PADDING-RIGHT: 5.4pt; HEIGHT: 14.65pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt" width="136">95%的酒精（冷却）</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 81.1pt; PADDING-RIGHT: 5.4pt; HEIGHT: 14.65pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt" width="108">二苯胺</td></tr><tr style="HEIGHT: 12.95pt; mso-yfti-irow: 4; mso-yfti-lastrow: yes"><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 35.1pt; PADDING-RIGHT: 5.4pt; HEIGHT: 12.95pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-top-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt" width="47">丁</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 41.6pt; PADDING-RIGHT: 5.4pt; HEIGHT: 12.95pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt" width="55">鸡血</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 86.4pt; PADDING-RIGHT: 5.4pt; HEIGHT: 12.95pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt" width="115">蒸馏水</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 102.1pt; PADDING-RIGHT: 5.4pt; HEIGHT: 12.95pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt" width="136">95%的酒精（冷却）</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 81.1pt; PADDING-RIGHT: 5.4pt; HEIGHT: 12.95pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt; mso-border-alt: solid windowtext .5pt" width="108">二苯胺</td></tr></tbody></table>

  A.实验材料选择错误的组别是丙

  B.沸水浴后试管中溶液颜色变蓝的组别是甲、丁

  C.甲组实验现象差的原因是30℃的酒精对DNA的析出效果差

  D.乙组实验不成功是因为在鉴定时加入了甲基绿

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• 2下列有关试管动物技术的叙述正确的是

  A.可以实现良种家畜的快速大量繁殖

  B.受精卵移植之前需检查受精状况和发育能力

  C.移入受体的供体胚胎的遗传特性在孕育过程中不受影响

  D.体外受精主要包括卵母细胞的采集和培养、精子的采集和获能、受精

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• 3下列关于造成相关实验失败的原因分析中，错误的是

  A.制作腐乳时，盐加的量较多，造成豆腐腐败变质

  B.制备固定化酵母细胞时，加热太快，使海藻酸钠焦糊

  C.制作果醋时，通氧不足，造成发酵失败

  D.用加酶洗衣粉洗涤污渍时，浸泡时间不足，造成洗涤效果差

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• 4下列关于固定化酶和固定化细胞的叙述，正确的是

  A.固定化细胞技术在多步连续催化反应方面优势明显，并提高了反应速率

  B.用包埋法固定细胞，可采用琼脂糖、海藻酸钠、明胶等不溶于水的多孔性载体

  C.利用固定化酶降解水体中有机磷农药，需适宜的温度、pH、营养条件

  D.固定化细胞可在反应物为大分子物质的反应中发挥作用

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• 5用固定化酵母细胞发酵葡萄糖溶液时发现无酒精产生，原因不可能是

  A.发酵瓶内通气良好

  B.瓶内氧气不足，无氧呼吸产生乳酸

  C.凝胶珠内可能没有酵母细胞

  D.溶化后的海藻酸钠未冷却即与酵母细胞混合

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• 6哈佛大学的科学家从怀孕妇女的羊水中提取了干细胞,并在实验室培养后形成了多种人体器官组织，如骨骼、肌肉、肝脏等。下列有关叙述正确的是

  A.该研究说明干细胞具有发育的全能性

  B.这些干细胞一般来自胎儿脱落的表皮细胞

  C.该技术可用于解决移植后免疫排斥的问题

  D.这些干细胞可用生理盐水保存，也可进行遗传改造

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