Structure, Replication and Packaging of DNA

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Structure, Replication and Packaging of DNA: Overview

This topic covers concepts, such as, Deoxyribose Sugar, Semiconservative Mode, Replication Fork and Nucleosomeetc.

Important Questions on Structure, Replication and Packaging of DNA

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Experiments indicate that heap sort requires ......... as much time as quick sort for randomly sorted input.

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Group I C. botulinum strains generally includes in

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Choose the enzyme that is involved in the continuous replication of DNA strand.

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Which of the following chemical substance is used as a source of nitrogen in the Meselson and Stahl’s experiment?

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Which of the following represents the complementary pairs?

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The polarity of the DNA strands from a to b and from c to d shown during replicating shown in the figure below would be:

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What is the error in above diagram?

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A monoclonal antibody differs from a polyclonal antibody in that monoclonal antibodies:

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In a transduction experiment, the phage DNA was radiolabeled with radioactive phosphorus(P32), and then allowed to infect the E.coli strain growing in medium containing normal phosphorus. The infection led to fragmentation of the genome of E.coli. Now, on subsequent infection to other E.coli strain, the phage DNA along with some fragments of bacterial DNA was injected into the new E.coli strain. Based on this knowledge, we can say that:

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A DNA molecule having labelled thymidine in one of its strands is allowed to replicate in a radioactive medium. Calculate the number of strands with labelled thymine in the DNA after three successive divisions.

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In a DNA, one chain contains 22 thymine and its opposite chain contains 28 guanine. Then what is the length of the DNA in Ao?

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Given below are two statements:

Statement I: In prokaryotes, the positively charged DNA is held with some negatively charged proteins in a region called nucleoid.

Statement II: In eukaryotes, the negatively charged DNA is wrapped around the positively charged histone octamer to form nucleosome.

In the light of the above statements, choose the correct answer from the options given below:

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Choose the correct combination for ester bond formation with respect to a polymer of nucelotide.

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If total number of all H-bond present between all A-T bases is equal to total H-bond in all G-C bases in DNA, calculate the length of DNA if total H-Bond between A and T is 30 -

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Which of the given is correct difference between prokaryotes and eukaryotes?

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The chromatin from which RNA synthesis occurs such chromatin is known as ?

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What is meaning of histone octomar?

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Read the following passage carefully and fill in the blanks with the correct terms. 

Some regions of chromatin are _____packed and are referred to as _____. The chromatin that is more _____ packed is called_____.

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DNA replicates semiconservatively was first shown in :