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The nucleic acid of a virus is DN
A:
选项:
A:对
B:错
发布时间:
2024-06-17 20:10:05
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相关试题
1.
Which of the following statements about nucleic acids is correct:选项: A:DNA is the carrier of genetic material, responsible for the storage, transmission and release of genetic information; RNA is responsible for the expression of genetic information.; B:Nucleic acid mainly exists in the nucleus; C:Nucleic acid is divided into DNA and RNA.; D:All organisms contain both DNA and RNA nucleic acids.
2.
Which of the following statements about nucleic acids is correct:选项: A:DNA is the carrier of genetic material, responsible for the storage, transmission and release of genetic information; RNA is responsible for the expression of genetic information.; B:Nucleic acid mainly exists in the nucleus; C:Nucleic acid is divided into DNA and RNA.; D:All organisms contain both DNA and RNA nucleic acids.
3.
About the discovery of nucleic acid The following statements are correct 选项: A:In 1868, young Swiss scientist F. Miescher made protein-free nucleic acids from yeast and animal cells, and used the term "nucleic acid" for the first time.; B:In 1889 Altman isolated a phosphorus-rich organic substance called "nuclides" from the nucleus of pus cells on surgical bandages; C:In 1944, Avery passed an in vitro experiment and separated four types of organic matter to verify that nucleic acid is genetic material.; D:In 1952, A.D. Hershey and M. Chase labeled the protein and nucleic acid of T2 bacteriophage with DNA35S and 32P, respectively. The experiment of infecting E. coli further proved that DNA is genetic material.
4.
Ribosomes are machines that produce () in cells.选项: A:Carbohydrate molecules; B:RNA; C: Protein; D:Nucleic acid
5.
The cellular components that can react with free radicals are ( )选项: A:enzyme; B:protein; C:carbohydrate; D:nucleic acid; E:phospholipid
6.
Which combination of the components is the most parts of the plasmmembrane () A: Protein and nucleic acid B: Protein and carbohydrate C: Protein and lipid D: carbohydrate and lipid
7.
In the early 1900s the discovery that thenucleus contains nucleic acids and proteins ledmany scientists to believe that ( ). 选项: A、genes are in the nucleus B、genes are broken down by pepsin C、genes are made of nucleic acid D、genes are made of protein E、none of the above
8.
In nucleic acid ,nucleotide are linked through ( ) 选项: A、2',3'-phosphodiester bond B、2',5'-phosphodiester bond C、3',5'-phosphodiester bond D、Glycosidic bond E、Hydrogen bond
9.
Hbase支持ACID事务。( )选项: A:对 B:错
10.
Fatty acid chains are components of cell membranes。( )选项: A:对 B:错
11.
事务的执行必须保证ACID特性选项: A:对 B:错
12.
James Watson, Francis Crick, and Rosalind Franklin were awarded a Nobel Prize in 1962 for their work on the structure of DNA. ( ) 选项:A、对 B、错
13.
Pasteur demonstrated that lactic acid fermentation is due to the activity of microorganisms.选项: A:对 B:错
14.
RA may contribute to the antiviral response necessary for defense against measles virus infection. ( )选项: A:对 B:错
15.
The climate change includes global warming, acid rain and ozone depletion. 选项: A、对 B、错
16.
The metabolic function of the pentose phosphate pathway is to:选项: A:act as a source of ADP biosynthesis.; B:generate NADPH and pentoses for the biosynthesis of fatty acids and nucleic acids.; C:participate in oxidation-reduction reactions during the formation of H2O.; D:provide intermediates for the citric acid cycle.
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