【題目】Professor Hawking asks his students to read the newspaper to keep _______ of current affairs.
A. watched B. observed C. informed D. noticed
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【題目】圖一表示果蠅體細胞中染色體和相關(guān)基因,圖二為某家族的某種遺傳病的系譜(等位基因用A和a表示)。請據(jù)圖回答下列問題:
(1)圖一中果蠅的性別是__________(雌、雄)性。該果蠅的中B、b和D、d兩對基因的遺傳遵循_________定律,其產(chǎn)生配子的基因型及其數(shù)量比例為____________________。
(2)圖二中該遺傳病的遺傳方式是__________。如果3號與4號再生一個男孩,患病的概率為________。7號個體與某正常女子結(jié)婚(該女子父母正常,弟弟患該病)生正常男孩的概率是____________。
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【題目】(2016·江蘇) Many young people, most __________ were well-educated, headed for remote regions to chase their dreams.
A. of which B. of them
C. of whom D. of those
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【題目】(2016·北京) I live next door to a couple ___________ children often make a lot of noise.
A. whose B. why C. where D. which
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【題目】下面圖1表示人類鐮刀型細胞貧血癥的病因,圖2是一個家族中該病的遺傳系譜圖(h代表致病基因,H代表正常的等位基因),請據(jù)圖回答下列問題:
(1)人類鐮刀型細胞貧血癥產(chǎn)生的根本原因是發(fā)生了 。H與h基因的根本區(qū)別在于基因中 不同。
(2)圖中①過程發(fā)生的時間是 ,②過程表示 。
(3)α鏈堿基組成為 ,β鏈堿基組成為 。
(4)鐮刀型細胞貧血癥的致病基因位于 染色體上,屬于 性遺傳病。
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【題目】
The Beijing Opera Taking Tiger Mountain by Strategy is still_____ in many places and it is well received.
A. directed
B. staged
C. conducted
D. set
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【題目】One of the sides of the paper should be painted yellow,and .
A. the other is white
B. another white
C. the other white
D. another is white
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【題目】 If we learn some knowledge of first aid,it can make a real ________ in time of accidents.
A.a(chǎn)ppointment B.decision C.deal D.difference
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【題目】Gun control is a subject ___________ Americans have argued for a long time.
A. of which B. with which
C. about which D. into which
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