下列六种遗传病中属于性染色体病的是（）①苯丙酮尿症 -最需题库

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1若“M → N ”表示由条件M一定能推得N，则这种关系可表示为（）
A.M表示遵循基因分离定律，N表示遵循自由组合定律
B.M表示基因频率的改变，N表示生物的进化
C.M表示基因突变，N表示性状的改变
D.M表示某单倍体植株，N表示用秋水仙素处理得到纯合体
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2假定某致病基因a位于X染色体上，且隐性致死（使受精卵、胚胎致死）。一男子与一女性携带者结婚，理论上分析，这对夫妇所生的小孩性别比例（女孩：男孩）是（）
A.1 ：1
B.1 ：0
C.3 ：1
D.2：1
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3人的胰岛素基因和得以表达的胰岛素基因依次位于（）
A.体细胞、胰岛细胞中
B.胰岛细胞、体细胞中
C.均位于胰岛细胞中
D.均位于体细胞中
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4在下列细胞中，一定存在Y染色体的细胞是（）
A.大麻的花粉母细胞
B.果蝇的精细胞
C.人的次级精母细胞
D.鸡的受精卵
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5血浆中的水来自（）①组织液 ②淋巴 ③消化道
A.①②
B.①②③
C.①
D.②
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6下列需要进行遗传咨询的是（）
A.亲属中生过先天性畸形孩子的待婚青年
B.患过艾滋病的妇女
C.母亲的血型为O型血，咨询其子女的血型
D.得过乙型脑炎的夫妇
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7人类的红绿色盲基因位于X染色体上，父母表现型正常，生下3胞胎孩子。其中只有一个患色盲，有两个孩子为同卵双胞胎。3个孩子的性别不可能是（）
A.2女1男
B.全是男孩子
C.全是女孩或2男1女
D.全是男孩或2女1男
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8某双链DNA分子共有含氮碱基1400个，其中一条单链上(A+T):(C+G)=2:5。则该DNA分子连续复制两次共需游离的胸腺嘧啶脱氧核苷酸的数目是（）
A.300个
B.400个
C.600个
D.1200个
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9在一个DNA分子中，腺嘌呤与胸腺嘧啶之和占全部碱基数目的54%，其中一条链中鸟嘌呤、胸腺嘧啶分别占该链碱基总数的22%和28%，则一般来说由该链转录的信使RNA中鸟嘌呤占碱基总数的（）
A.24%
B.22%
C.26%
D.23%
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10右边表格表示某草原生态系的食物网情况（√表示其左侧竖栏所示生物以上面横栏中所示生物为食），以下分析正确的是（） <table style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-COLLAPSE: collapse; MARGIN-LEFT: 6.75pt; BORDER-TOP: medium none; MARGIN-RIGHT: 6.75pt; BORDER-RIGHT: medium none" border="1" cellspacing="0" cellpadding="0" align="right" _dj="MsoNormalTable"><tbody><tr style="HEIGHT: 19.15pt"><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 24.75pt; PADDING-RIGHT: 5.4pt; HEIGHT: 19.15pt; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm" valign="top" width="33"> </td><td style="BORDER-BOTTOM: 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 24.8pt; PADDING-RIGHT: 5.4pt; HEIGHT: 19.15pt; BORDER-TOP: 1pt solid; BORDER-RIGHT: 1pt solid; PADDING-TOP: 0cm" valign="top" width="33">草</td><td style="BORDER-BOTTOM: 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 24.8pt; PADDING-RIGHT: 5.4pt; HEIGHT: 19.15pt; BORDER-TOP: 1pt solid; BORDER-RIGHT: 1pt solid; PADDING-TOP: 0cm" valign="top" width="33">a</td><td style="BORDER-BOTTOM: 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 24.8pt; PADDING-RIGHT: 5.4pt; HEIGHT: 19.15pt; BORDER-TOP: 1pt solid; BORDER-RIGHT: 1pt solid; PADDING-TOP: 0cm" valign="top" width="33">b</td><td style="BORDER-BOTTOM: 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 24.8pt; PADDING-RIGHT: 5.4pt; HEIGHT: 19.15pt; BORDER-TOP: 1pt solid; BORDER-RIGHT: 1pt solid; PADDING-TOP: 0cm" valign="top" width="33">c</td><td style="BORDER-BOTTOM: 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 24.8pt; PADDING-RIGHT: 5.4pt; HEIGHT: 19.15pt; BORDER-TOP: 1pt solid; BORDER-RIGHT: 1pt solid; PADDING-TOP: 0cm" valign="top" width="33">d</td><td style="BORDER-BOTTOM: 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 24.8pt; PADDING-RIGHT: 5.4pt; HEIGHT: 19.15pt; BORDER-TOP: 1pt solid; BORDER-RIGHT: 1pt solid; PADDING-TOP: 0cm" valign="top" width="33">e</td></tr><tr style="HEIGHT: 19.15pt"><td style="BORDER-BOTTOM: 1pt solid; BORDER-LEFT: 1pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 24.75pt; PADDING-RIGHT: 5.4pt; HEIGHT: 19.15pt; BORDER-TOP: medium none; BORDER-RIGHT: 1pt solid; PADDING-TOP: 0cm" valign="top" width="33">a</td><td style="BORDER-BOTTOM: 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 24.8pt; PADDING-RIGHT: 5.4pt; HEIGHT: 19.15pt; BORDER-TOP: medium none; BORDER-RIGHT: 1pt solid; PADDING-TOP: 0cm" valign="top" width="33"> </td><td style="BORDER-BOTTOM: 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 24.8pt; PADDING-RIGHT: 5.4pt; HEIGHT: 19.15pt; BORDER-TOP: medium none; BORDER-RIGHT: 1pt solid; PADDING-TOP: 0cm" valign="top" width="33"> </td><td style="BORDER-BOTTOM: 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 24.8pt; PADDING-RIGHT: 5.4pt; HEIGHT: 19.15pt; BORDER-TOP: medium none; BORDER-RIGHT: 1pt solid; PADDING-TOP: 0cm" valign="top" width="33">√</td><td style="BORDER-BOTTOM: 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 24.8pt; PADDING-RIGHT: 5.4pt; HEIGHT: 19.15pt; BORDER-TOP: medium none; BORDER-RIGHT: 1pt solid; PADDING-TOP: 0cm" valign="top" width="33"> </td><td style="BORDER-BOTTOM: 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 24.8pt; PADDING-RIGHT: 5.4pt; HEIGHT: 19.15pt; BORDER-TOP: medium none; BORDER-RIGHT: 1pt solid; PADDING-TOP: 0cm" valign="top" width="33"> </td><td style="BORDER-BOTTOM: 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 5.4pt; WIDTH: 24.8pt; PADDING-RIGHT: 5.4pt; HEIGHT: 19.15pt; BORDER-TOP: medium none; BORDER-RIGHT: 1pt solid; PADDING-TOP: 0cm" valign="top" width="33"> </td></tr><tr style="HEIGHT: 19.15pt"><td style="BORDER-BOTTOM: 1pt solid; 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A.此食物网有4条食物链
B.如果人类大量捕杀c会使d的数量减少
C.次级消费者有b、d、e
D.如果能量传递效率都按10%计算，并且草传递给b和c的能量相等，那么a的能量与d的能量相等
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下列六种遗传病中属于性染色体病的是（ ）①苯丙酮尿症 ②21三体综合征 ③性腺发育不良④青少年型糖尿病 ⑤抗维生素D佝偻病 ⑥猫叫综合症

试卷相关题目

下列六种遗传病中属于性染色体病的是（）①苯丙酮尿症 ②21三体综合征 ③性腺发育不良④青少年型糖尿病 ⑤抗维生素D佝偻病 ⑥猫叫综合症