皮皮学，免费搜题
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【单选题】
从人类活动对环境的影响来看，生态学是( )的交汇点与桥梁
A.
植物学与动物学
B.
自然科学与社会科学
C.
理论科学与实验科学
D.
地理学与生物学
拍照语音搜题，微信中搜索"皮皮学"使用
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举一反三
【单选题】The first complete DNA sequence of a non-viral, free-living organism was obtained for:
A.
a bacterium in 1900.
B.
a bacterium in 1945.
C.
a bacterium in 1995.
D.
humans in 1990.
E.
humans in 2000.
查看完整题目与答案
【多选题】邓小平提出,在改革中我们必须始终坚持的根本原则是(,2002年)
A.
坚持公有制经济的主体地位
B.
坚持按劳分配与按要素分配相结合
C.
坚持社会主义与市场的结合
D.
坚持共同富裕
E.
坚持多种经济成分共同发展
查看完整题目与答案
【单选题】A sequence of 3 bases in DNA has the sequence CGT. What is the corresponding tRNA anticodon for this sequence? ( )
A.
CGT
B.
GCA
C.
CGU
D.
UCG
查看完整题目与答案
【单选题】If the DNA strand, 5'—GCTATGCATCGTGATCGAATTGCGT—3', serves as a template for the synthesis of RNA , which of the following choices gives the sequence and polarity of the newly synthesized RNA?
A.
5'—ACGCAATTCGATCACGATGCATAGC—3'
B.
5'—UGCGUUAAGCUAGUGCUACGUAUCG—3'
C.
5'—ACGCAAUUCGAUCACGAUGCAUAGC—3'
D.
5'—CGAUACGUAGCACUAGCUUAACGCA—3'
E.
5'—GCTATGCATCGTGATCGAATTGCGT—3'
查看完整题目与答案
【单选题】In the DNA sequence for sickle cell anaemia, adenine replaces thymine in a CTT triplet, forming the triplet CAT. During synthesis of the sickle cell haemoglobin molecule, the amino acid valine is inco...
A.
CAU
B.
CUA
C.
GAU
D.
GUA
查看完整题目与答案
【单选题】Certain drugs inhibit bacterial RNA synthesis. If the DNA strand 5 ′– GCTATGCATCGTGATC GAATTGCGT – 3 ′ serves as a template for the synthesis of RNA, which one of the following choices gives the seque...
A.
5 ′– ACGCAATTCGATCACGATGCATAGC – 3 ′
B.
5 ′– UGCGUUAAGCUAGUGCUACGUAUCG – 3 ′
C.
5 ′– ACGCAAUUCGAUCACGAUGCAUAGC – 3 ′
D.
5 ′– CGAUACGUAGCACUAGCUUAACGCA – 3 ′
E.
5 ′– GCTATGCATCGTGATCGAATTGCGT – 3 ′
查看完整题目与答案
【单选题】按基金的组织形式不同,证券投资基金可分为
A.
债券基金、股票基金、货币市场基金
B.
封闭式基金与开放式基金
C.
成长型基金与收入型基金
D.
契约型基金与公司型基金
查看完整题目与答案
【单选题】Some chemotherapeutic drugs alter the ability of DNA polymerase to faithfully replicate. For the DNA sequence 5 ′– ATCGATCGATCGATCG – 3 ′ , which one of the following represents the sequence and polar...
A.
5 ′– ATCTATCGATCGATCG – 3 ′
B.
3 ′– ATCGATCGATCGATCG – 5 ′
C.
5 ′– CGAUCGAUCAUCGAU – 3 ′
D.
5 ′– CGATCGATCGATCGAT – 3 ′
E.
3 ′– CGATCGATCGATCGAT – 5 ′
查看完整题目与答案
【单选题】According to the article, what is one reason why scientists are mapping the sunflower DNA sequence?
A.
Because they want to work with experts at the Renewable Fuels Association
B.
Because they want to compare the sunflower genome with the human genome
C.
Because they want to crossbreed a sunflower with corn to create ethanol
D.
Because they want to locate genes responsible for agriculturally important traits
查看完整题目与答案
【单选题】In 1956, Arthur Kornberg and colleagues discovered DNA polymerase I (Pol I), in Escherichia coli . They described the DNA replication process by which DNA polymerase copies the base sequence of a temp...
A.
1957
B.
1958
C.
1959
D.
1960
查看完整题目与答案
相关题目：
【单选题】The first complete DNA sequence of a non-viral, free-living organism was obtained for:
A.
a bacterium in 1900.
B.
a bacterium in 1945.
C.
a bacterium in 1995.
D.
humans in 1990.
E.
humans in 2000.
查看完整题目与答案
【多选题】邓小平提出,在改革中我们必须始终坚持的根本原则是(,2002年)
A.
坚持公有制经济的主体地位
B.
坚持按劳分配与按要素分配相结合
C.
坚持社会主义与市场的结合
D.
坚持共同富裕
E.
坚持多种经济成分共同发展
查看完整题目与答案
【单选题】A sequence of 3 bases in DNA has the sequence CGT. What is the corresponding tRNA anticodon for this sequence? ( )
A.
CGT
B.
GCA
C.
CGU
D.
UCG
查看完整题目与答案
【单选题】If the DNA strand, 5'—GCTATGCATCGTGATCGAATTGCGT—3', serves as a template for the synthesis of RNA , which of the following choices gives the sequence and polarity of the newly synthesized RNA?
A.
5'—ACGCAATTCGATCACGATGCATAGC—3'
B.
5'—UGCGUUAAGCUAGUGCUACGUAUCG—3'
C.
5'—ACGCAAUUCGAUCACGAUGCAUAGC—3'
D.
5'—CGAUACGUAGCACUAGCUUAACGCA—3'
E.
5'—GCTATGCATCGTGATCGAATTGCGT—3'
查看完整题目与答案
【单选题】In the DNA sequence for sickle cell anaemia, adenine replaces thymine in a CTT triplet, forming the triplet CAT. During synthesis of the sickle cell haemoglobin molecule, the amino acid valine is inco...
A.
CAU
B.
CUA
C.
GAU
D.
GUA
查看完整题目与答案
【单选题】Certain drugs inhibit bacterial RNA synthesis. If the DNA strand 5 ′– GCTATGCATCGTGATC GAATTGCGT – 3 ′ serves as a template for the synthesis of RNA, which one of the following choices gives the seque...
A.
5 ′– ACGCAATTCGATCACGATGCATAGC – 3 ′
B.
5 ′– UGCGUUAAGCUAGUGCUACGUAUCG – 3 ′
C.
5 ′– ACGCAAUUCGAUCACGAUGCAUAGC – 3 ′
D.
5 ′– CGAUACGUAGCACUAGCUUAACGCA – 3 ′
E.
5 ′– GCTATGCATCGTGATCGAATTGCGT – 3 ′
查看完整题目与答案
【单选题】按基金的组织形式不同,证券投资基金可分为
A.
债券基金、股票基金、货币市场基金
B.
封闭式基金与开放式基金
C.
成长型基金与收入型基金
D.
契约型基金与公司型基金
查看完整题目与答案
【单选题】Some chemotherapeutic drugs alter the ability of DNA polymerase to faithfully replicate. For the DNA sequence 5 ′– ATCGATCGATCGATCG – 3 ′ , which one of the following represents the sequence and polar...
A.
5 ′– ATCTATCGATCGATCG – 3 ′
B.
3 ′– ATCGATCGATCGATCG – 5 ′
C.
5 ′– CGAUCGAUCAUCGAU – 3 ′
D.
5 ′– CGATCGATCGATCGAT – 3 ′
E.
3 ′– CGATCGATCGATCGAT – 5 ′
查看完整题目与答案
【单选题】According to the article, what is one reason why scientists are mapping the sunflower DNA sequence?
A.
Because they want to work with experts at the Renewable Fuels Association
B.
Because they want to compare the sunflower genome with the human genome
C.
Because they want to crossbreed a sunflower with corn to create ethanol
D.
Because they want to locate genes responsible for agriculturally important traits
查看完整题目与答案
【单选题】In 1956, Arthur Kornberg and colleagues discovered DNA polymerase I (Pol I), in Escherichia coli . They described the DNA replication process by which DNA polymerase copies the base sequence of a temp...
A.
1957
B.
1958
C.
1959
D.
1960
查看完整题目与答案