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Bacteriophages area. large bacteria.b. protistans.c. pathogens (disease-producing bacteria).d. viruses.e. cellular components.?Which is Not a major function of the genetic material?a. undergo mutationsb. replicate itselfc. store informationd. catalyze chemical reactionsRosalind Franklin helped reveal the structure of DNA by usinga. cytosine analysisb. centrifuge analysisc. bacteriaphagesd. X-ray crystallographyDetermine which of the following statements about DNA replication is NOT correct?a. Unwinding of the DNA molecule occurs as hydrogen bonds breakb. The enzyme that catalyzes DNA replication is DNA polymerasec. Replication occurs as each base is paired with another exactly like itd. The process is known as semiconservative replication because one old strand is conserved in the new moleculee. Complementary base pairs are held together with hydrogen bondsBecause one original strand of the double stranded helix is found in each daughter cell, the replication process is calleda. freeing DNAb. redundantc. mutation positived. proofreadinge. semiconservativeStarting with 15N15N (heavy) DNA, and after TWO generations in the 14N medium, Escherichia coli cells will containa. 50% 15N15N DNA and 50% 15N14N DNA.b. 50% 15N15N DNA and 50% 14N14N DNA.c. 50% 15N14N DNA and 50% 14N14N DNA.d. 25% 15N15N DNA, 50% 15N14N DNA, and 25% 14N14N DNA.e. 25% 15N14N DNA and 75% 14N14N DNA.The x-ray diffraction photography of Rosalind Franklin and Maurice was critical evidence of DNAa. indicating that DNA has a double helix structureb. showing equal number of purines and pyrimidinesc. revealing the location of each adenine, guanine, cytosine, and thymined. showing the bases of DNA were held together by hydrogen bondse. revealing the structure of the deoxyribose sugarIn the Watson and Crick model of DNA, the steps of the ladder are composed ofa. a sugar and a phosphate moleculeb. a purine and a pyrimidinec. two purinesd. two pyrimidinese. sugarsThe structure of DNA is most like aa. None of the answersb. double helixc. double triangled. double ellipsee. figure eight
There are a number of natural types of DNA. One is animal DNA, one plant DNA, another bacterial DNA.What are these two kinds of DNA.
Autoimmune haemolytic anaemia is caused in general by auto anti bodies of the IgG and IgM classes. Can antibodies of other classes such as IgA, IgD, IgE cause autoimmune haemolytic anaemia.
Enzymes greatly decrease the activation energy. Describe two of the ways they do this and be specific in terms of chemical mechanisms.
Why water is known as polar solvent? How is hydrogen bonding involved in cohesive attraction of water molecules? Water molecules also attract other sorts of molecules, particulary ions.Why is this.
Your friend is trying to generate an in vitro system for studying the formation of COPII vesicles. He finds that to get well-organized vesicle budding from artificial membranes, he needs to add the coat proteins, the Sar1 GTP-binding protein.
Suppose a fire hose ejects a stream of water at an angle of 38.8 ° above the horizontal. The water leaves the nozzle with a speed of 26.6 m/s.
Endospore formation and the function of endospores in bacteria - Write an essay
Frogs are extremely sensitive to acid rain. How might this information be used to investigate your observation about the trees dying in the forest.
Find out the number of triplet codons feasible
Based on the dimensions of an alpha-helix, compute the range in width of the membrane? Discuss how many amino acids would be needed in an antiparallel beta strand to span the membrane?
The CAP activator protein and the Lac repressor both control the Lac operon. You construct cells that are mutant in the gene coding for the Lac repressor.
Hydrolytic driving force. The hydrolysis of pyrophosphate to orthophosphate is important in driving forwards biosynthetic reactions such as the synthesis of DNA.
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