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In B form of DNA, one turn of the helix is of 

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Important Questions on Molecular Basis of inheritance

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Biology>Molecular Biology>Molecular Basis of inheritance>Structure of DNA and DNA Packaging
Which one of the following has phosphoric acid anhydride bonds?
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Biology>Molecular Biology>Molecular Basis of inheritance>Structure of DNA and DNA Packaging
If a double-stranded DNA has 15% cytosine, what is the % of adenine in the DNA?
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Biology>Molecular Biology>Molecular Basis of inheritance>Structure of DNA and DNA Packaging
Melting temperature for double-stranded DNA is the temperature at which 50% of the double-stranded molecules are converted into single stranded molecules. Which one of the following DNA will have the highest melting temperature?
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Biology>Molecular Biology>Molecular Basis of inheritance>Structure of DNA and DNA Packaging
Which one of the following is the complementary sequence for the DNA with 5′-CGTACTA-3′
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Biology>Molecular Biology>Molecular Basis of inheritance>Structure of DNA and DNA Packaging
Which one of the following combinations is found in DNA?
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Biology>Molecular Biology>Molecular Basis of inheritance>Structure of DNA and DNA Packaging
Watson and Crick model of DNA is
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Biology>Molecular Biology>Molecular Basis of inheritance>Structure of DNA and DNA Packaging
Given the fact that histone binds DNA, it should be rich in:
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Biology>Molecular Biology>Molecular Basis of inheritance>Structure of DNA and DNA Packaging
Which of the following statements is correct?
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Biology>Molecular Biology>Molecular Basis of inheritance>Structure of DNA and DNA Packaging
If a dsDNA has 20% adenine, what would be its cytosine content?
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Biology>Molecular Biology>Molecular Basis of inheritance>Structure of DNA and DNA Packaging
What is the length of human DNA containing 6.6×109 bp ?
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Biology>Molecular Biology>Molecular Basis of inheritance>Structure of DNA and DNA Packaging
DNA fragments are
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Biology>Molecular Biology>Molecular Basis of inheritance>Structure of DNA and DNA Packaging
In sea urchin DNA, which is double-stranded, 17% of the bases were shown to be cytosine. What are the percentages of other three bases expected to be present in this DNA?
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Biology>Molecular Biology>Molecular Basis of inheritance>Structure of DNA and DNA Packaging
Purines found both in DNA and RNA are
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Biology>Molecular Biology>Molecular Basis of inheritance>Structure of DNA and DNA Packaging
The association of histone H1 with a nucleosome indicates:
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Biology>Molecular Biology>Molecular Basis of inheritance>Structure of DNA and DNA Packaging

Which one of the following pairs of nitrogenous bases of nucleic acids, is wrongly matched with the category mentioned against it?

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Biology>Molecular Biology>Molecular Basis of inheritance>Structure of DNA and DNA Packaging
The length of DNA helix in a typical nucleosome is
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Biology>Molecular Biology>Molecular Basis of inheritance>Structure of DNA and DNA Packaging
If the distance between two consecutive base pairs is 0.34 nm and the total number of base pairs of a DNA double helix in a typical mammalian cell is 6.6×109bp bp, then the length of the DNA is approximately
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Biology>Molecular Biology>Molecular Basis of inheritance>Structure of DNA and DNA Packaging
Considering the average molecular mass of a base to be 500 Da, what is the molecular mass of double stranded DNA of 10 base pairs?
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Biology>Molecular Biology>Molecular Basis of inheritance>Structure of DNA and DNA Packaging
Which of the following statements about nucleosome is true?
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Biology>Molecular Biology>Molecular Basis of inheritance>Structure of DNA and DNA Packaging
The molecular weight of E coil. DNA is 3.1×109 g/mol. The average molecular weight of the nucleotide pair is 660 g/mol and each nucleotide pair contributes to 0.34 nm to the length of DNA. The length of E coli DNA molecule will be approximately: