右图为人类某种遗传病的系谱图,5号和11号为男性患者。下列相关叙述合理的是() A.

题型:单项选择题

问题:

右图为人类某种遗传病的系谱图,5号和11号为男性患者。下列相关叙述合理的是()

A.该病属于隐性遗传病,且致病基因一定在常染色体上

B.若7号不带有致病基因,则11号的致病基因可能来自于2号

C.若7号带有致病基因,10号产生的配子带有致病基因的概率是2/3

D.若3号不带致病基因,7号带致病基因,9号和10号婚配,后代男性患病的概率是1/18

考点:高中生物人类遗传病人类遗传病题库
题型:单项选择题

女孩7岁,哮喘病史2年。两天前出现发热,鼻流浊涕,今日突然咳喘哮鸣,痰稠色黄,胸闷膈满,声高息涌,呼气延长,面红口渴,大便干燥,小便黄赤,舌苔薄黄,脉滑数。治疗首选方剂是

A.定喘汤合猴枣散

B.麻杏石甘汤合苏葶丸

C.银翘散合礞石滚痰丸

D.清气化痰丸

E.清宁散

题型:单项选择题

个人耐用消费品贷款起点一般为人民币()元,最高额不超过()万元。

A.1000;100000

B.2000;200000

C.1000;200000

D.2000;100000

题型:单项选择题

填入下文划线处恰当的一项是()

  下午,太阳还没有落,峡里早升起一层青色的雾。这使得三峡的黄昏来得特别早,而去得特别迟。于是,在青色透明的黄昏中,两岸峭壁的倒影,一齐拥向江心,使江面上只剩下一线发光的天空,____。

A.长江后浪催前浪,轰轰烈烈地流向远方

B.长江平静而轻缓地流淌,变得有如一条明亮的小溪

C.长江像一条五彩的带子在夕阳里悠悠飘荡,变得如此驯良

D.长江像一条银鳞巨蟒,翻腾着,呼啸而去

题型:单项选择题

Billy and Bobby were small boys. They were brothers, and they often fought each other.

Last Saturday their mother said to them, “I’m going to cook our lunch now, go out and play in the garden……and be good.”

“Yes, Mum,” the two boys answered, and they went out.

They played in the garden for half an hour, and then Billy ran in. “Mum,” he said, “Bobby’s broken a window in Mrs Allen’s house.” Mrs Allen was one of their neighbours.

“He’s a bad boy,” his mother said. “How did he break it?”

“I threw a stone at him,” Billy answered, “and he quickly moved down.”

小题1:Billy and Bobby were           .

A.sisters

B.classmates

C.not often kind to each other

D.always kind to each other小题2:Last Saturday their mother asked them           .

A.not to play in the garden

B.to cook their lunch

C.not to go out

D.to be good小题3:          broke the window.

A.Mrs Allen

B.Billy

C.Bobby

D.The mother小题4:Mrs Allen was            .

A.Billy’s mother

B.their neighbour

C.their mother

D.Bobby’s aunt

题型:单项选择题

卵巢结构中对放射最敏感的两种是()。

A.卵巢实质

B.卵巢间质

C.黄体

D.生殖细胞

E.卵泡细胞

更多题库