利用细胞工程方法,以SARS病毒核衣壳蛋白为抗原制备出单克隆抗体。下列相关叙述正确的是
A.用纯化的核衣壳蛋白反复注射到小鼠体内,产生的血清抗体为单克隆抗体
B.体外培养单个效应B细胞可以获得大量针对SARS病毒的单克隆抗体
C.将等量效应B细胞和骨髓瘤细胞混合,经PEG诱导融合后的细胞均为杂交瘤细胞
D.利用该单克隆抗体与SARS病毒核衣壳蛋白特异性结合的方法可诊断出病毒感染者
试卷相关题目
- 1动物细胞培养的特点是①细胞贴壁 ②有丝分裂 ③分散生长 ④接触抑制 ⑤减数分裂 ⑥原代培养一般传代1~10代
A.①②④⑥
B.②③④⑤
C.①③④⑥
D.③④⑤⑥
开始考试点击查看答案 - 2能克服远源杂交不亲和障碍的技术是
A.组织培养
B.植物体细胞杂交
C.动物胚胎移植
D.单倍体育种
开始考试点击查看答案 - 3在已获得某mRNA的情况下,目前得到其对应的基因的最佳方法是
A.测出该mRNA序列,再推测出目的基因序列,最后通过化学方法,以单核苷酸为原料人工合成
B.以该mRNA为模板,合成蛋白质,测出蛋白质的氨基酸序列,再推测出该mRNA序列,最后推测出目的基因序列,再通过化学方法,以单核苷酸为原料人工合成
C.以该mRNA为模板,反转录成互补的单链DNA,然后在酶的作用下合成双链DNA
D.将该mRNA中的核糖脱氧,然后直接作为目的基因
开始考试点击查看答案 - 4选用红细胞作为分离蛋白质的实验材料,有何特点
A.血红蛋白是有色蛋白
B.红细胞无细胞核
C.红细胞蛋白质含量高
D.红细胞DNA含量高
开始考试点击查看答案 - 5下列对有关实验的描述中,错误的是
A.纯化血红蛋白时,凝胶色谱柱利用各分子相对分子质量的不同,大分子物质先洗脱出来
B.在观察植物细胞的质壁分离和复原实验中,低倍镜转换成高倍镜后,视野变暗,细胞数目变少
C.将斐林试剂加入到蛋白质溶液中,加热后出现紫色反应
D.在DNA的粗提取与鉴定实验中,可以使用0.14mol/L的NaCl溶液析出DNA
开始考试点击查看答案 - 6不能作为组织培养、细胞培养和克隆的生物材料是
A.花粉
B.幼叶
C.人血液中的红细胞
D.卵细胞
开始考试点击查看答案 - 7某种转基因玉米能高效合成一种多肽类的消化酶抑制剂,让害虫无法消化食物而死。下列就该玉米对人类的安全性评论中,不符合生物学原理的是
A.安全,不同物种的酶在结构上有差异,该抑制剂对人体消化酶无影响
B.安全,人类通常食用煮熟的玉米,该抑制剂被高温破坏后不会影响人体
C.不安全,该转基因玉米可能存在一些未被人知的潜在威胁需要进一步评估
D.不安全,该抑制剂基因能直接在人体细胞内表达,使人无法消化食物而患病
开始考试点击查看答案 - 8为了确保北京奥运会空气质量达到较高水平,2001年申奥成功以来,北京周边地区建立了大量的绿色林带,以下相关说法错误的是
A.建造人工林带在引进树种时应充分注意物种的安全性
B.为了便于管理,最好使用单一树种
C.退耕还林应做好农民的安置工作
D.应加强宣传教育,尽可能避免“前面种树,后面毁林”
开始考试点击查看答案 - 9下列有关“DNA的粗提取和鉴定”实验原理的叙述不正确的是
A.DNA在NaCl溶液中的溶解度,随NaCl溶液浓度的降低而减小
B.利用DNA不溶于酒精的性质,可除去细胞中溶于酒精的物质而得到较纯的DNA
C.DNA是大分子有机物,不溶于水而溶于某些有机溶剂如酒精
D.在沸水中,DNA遇二苯胺会出现紫色反应
开始考试点击查看答案 - 10鸡的输卵管细胞能合成卵清蛋白,红细胞能合成血红蛋白,胰岛细胞能合成胰岛素,用编码上述蛋白质的基因分别做探针,对三种细胞中提取的总DNA的限制酶切片段进行杂交实验;用同样的三种基因片段做探针,对上述三种细胞中提取的总RNA进行杂交实验,上述实验结果如下表: <table style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; WIDTH: 401.4pt; BORDER-COLLAPSE: collapse; MARGIN-LEFT: 23.7pt; BORDER-TOP: medium none; BORDER-RIGHT: medium none; mso-padding-alt: 0cm 5.4pt 0cm 5.4pt; mso-border-alt: solid windowtext .5pt; mso-border-insideh: .5pt solid windowtext; mso-border-insidev: .5pt solid windowtext" border="1" cellspacing="0" cellpadding="0" width="535" _dj="MsoNormalTable"><tbody><tr style="PAGE-BREAK-INSIDE: avoid; HEIGHT: 13.9pt; 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: 68.4pt; PADDING-RIGHT: 5.4pt; HEIGHT: 13.9pt; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-alt: solid windowtext .5pt" valign="top" rowspan="2" width="91"> </td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 162pt; PADDING-RIGHT: 5.4pt; HEIGHT: 13.9pt; 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" valign="top" width="216" colspan="3">细胞总DNA</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 171pt; PADDING-RIGHT: 5.4pt; HEIGHT: 13.9pt; 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" valign="top" width="228" colspan="3">细胞总RNA</td></tr><tr style="PAGE-BREAK-INSIDE: avoid; HEIGHT: 13.9pt; mso-yfti-irow: 1"><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 54pt; PADDING-RIGHT: 5.4pt; HEIGHT: 13.9pt; 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" valign="top" width="72">输卵管细胞</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 45pt; PADDING-RIGHT: 5.4pt; HEIGHT: 13.9pt; 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" valign="top" width="60">红细胞</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 63pt; PADDING-RIGHT: 5.4pt; HEIGHT: 13.9pt; 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" valign="top" width="84">胰岛细胞</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 72pt; PADDING-RIGHT: 5.4pt; HEIGHT: 13.9pt; 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" valign="top" width="96">输卵管细胞</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 45pt; PADDING-RIGHT: 5.4pt; HEIGHT: 13.9pt; 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" valign="top" width="60">红细胞</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 54pt; PADDING-RIGHT: 5.4pt; HEIGHT: 13.9pt; 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" valign="top" width="72">胰岛细胞</td></tr><tr style="HEIGHT: 13.9pt; mso-yfti-irow: 2"><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 68.4pt; PADDING-RIGHT: 5.4pt; HEIGHT: 13.9pt; 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" valign="top" width="91">卵清蛋白基因</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 54pt; PADDING-RIGHT: 5.4pt; HEIGHT: 13.9pt; 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" valign="top" width="72">十</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 45pt; PADDING-RIGHT: 5.4pt; HEIGHT: 13.9pt; 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" valign="top" width="60">十</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 63pt; PADDING-RIGHT: 5.4pt; HEIGHT: 13.9pt; 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" valign="top" width="84">十</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 72pt; PADDING-RIGHT: 5.4pt; HEIGHT: 13.9pt; 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" valign="top" width="96">十</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 45pt; PADDING-RIGHT: 5.4pt; HEIGHT: 13.9pt; 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" valign="top" width="60">—</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 54pt; PADDING-RIGHT: 5.4pt; HEIGHT: 13.9pt; 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" valign="top" width="72">—</td></tr><tr style="HEIGHT: 14.6pt; mso-yfti-irow: 3"><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 68.4pt; PADDING-RIGHT: 5.4pt; HEIGHT: 14.6pt; 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" valign="top" width="91">血红蛋白基因</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 54pt; PADDING-RIGHT: 5.4pt; HEIGHT: 14.6pt; 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" valign="top" width="72">十</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 45pt; PADDING-RIGHT: 5.4pt; HEIGHT: 14.6pt; 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" valign="top" width="60">十</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 63pt; PADDING-RIGHT: 5.4pt; HEIGHT: 14.6pt; 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" valign="top" width="84">十</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 72pt; PADDING-RIGHT: 5.4pt; HEIGHT: 14.6pt; 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" valign="top" width="96">—</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 45pt; PADDING-RIGHT: 5.4pt; HEIGHT: 14.6pt; 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" valign="top" width="60">十</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 54pt; PADDING-RIGHT: 5.4pt; HEIGHT: 14.6pt; 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" valign="top" width="72">—</td></tr><tr style="HEIGHT: 14.6pt; mso-yfti-irow: 4"><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 68.4pt; PADDING-RIGHT: 5.4pt; HEIGHT: 14.6pt; 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" valign="top" width="91">胰岛素基因</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 54pt; PADDING-RIGHT: 5.4pt; HEIGHT: 14.6pt; 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" valign="top" width="72">十</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 45pt; PADDING-RIGHT: 5.4pt; HEIGHT: 14.6pt; 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" valign="top" width="60">十</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 63pt; PADDING-RIGHT: 5.4pt; HEIGHT: 14.6pt; 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" valign="top" width="84">十</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 72pt; PADDING-RIGHT: 5.4pt; HEIGHT: 14.6pt; 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" valign="top" width="96">—</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 45pt; PADDING-RIGHT: 5.4pt; HEIGHT: 14.6pt; 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" valign="top" width="60">—</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 54pt; PADDING-RIGHT: 5.4pt; HEIGHT: 14.6pt; 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" valign="top" width="72">十</td></tr><tr style="HEIGHT: 14.6pt; mso-yfti-irow: 5; mso-yfti-lastrow: yes"><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 68.4pt; PADDING-RIGHT: 5.4pt; HEIGHT: 14.6pt; 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" valign="top" width="91"> </td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 162pt; PADDING-RIGHT: 5.4pt; HEIGHT: 14.6pt; 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" valign="top" width="216" colspan="3">DNA分子杂交法</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 171pt; PADDING-RIGHT: 5.4pt; HEIGHT: 14.6pt; 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" valign="top" width="228" colspan="3">RNA分子杂交法</td></tr></tbody></table>“+”表示杂交过程中有杂合双链 “—”表示杂交过程有游离(未杂合)的单链根据上述事实,下列叙述正确的是
A.上述三种细胞均有卵清蛋白基因、血红蛋白基因和胰岛素基因
B.上述三种细胞的分化是由于细胞在发育过程中基因选择性表达
C.上述三种细胞只有各自对应的基因及各自对应的基因表达产物
D.在红细胞成熟过程中卵清蛋白基因和胰岛素基因发生了丢失
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