Q. 30 nm wide helix with five or six nucleosomes per helix is known as

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Q. Which of the following is used to determine the appropriate stringency (Wallace rule)?

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Q. One hypothesis of DNA replication suggested that the parental DNA molecules are broken into fragments. Both strands of DNA in each of the daughter molecules are made up of an assortment of parental and new DNA. This statement refers to which hypothesis?

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Q. DNA polymerases I also has

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Q. Without telomerase, what would happen to the ends of chromosomes after each round of replication?

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Q. What is the approximate percentage of repetitive DNA sequences in human DNA?

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Q. The replication of a linear DNA molecule in a eukaryotic chromosome creates a problem which is reported to be sorted out by

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Q. The rapid appearance of HIV-1 strains that are resistant to AIDS drugs is due in part to which of the following property of its reverse transcriptase?

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Q. The packing ratio of nucleosomes is about

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Q. After one replication in 15N, how many bands should be observed in a cesium chloride gradient?

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Q. Which of the following species lack a 'classical' histone H1?

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Q. Which of the following is correct?

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Q. The size of a linear DNA fragment in a gel can be estimated by

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Q. Which of the following are short nucleotides strands made by DNA polymerase working in the opposite direction of the replication fork?

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Q. Which of these drugs bind to DNA and cuts it, producing hydroxyl radicals?

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Q. Replication in E. coli is initiated by the generation of short RNA primers using

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Q. DNA replication results in

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Q. Which enzyme catalyzes the elongation of DNA molecules?

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Q. What is the IUPAC code for an A, C, T ambiguity in a nucleic acid sequence?

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Q. There is a single origin for DNA replication in bacteria. How many origins of replication are found in the much larger genomes of eukaryotes such as mammals?

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