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Earn 100

Draw the diagram of phosphodiester bond in a DNA.

Important Questions on Molecular Genetics

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Biology>Genetics and Evolution>Molecular Genetics>Chemistry of Nucleic Acids
Manisha analyzed DNA molecule in the laboratory. Which of the following groups of elements will she find?
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Biology>Genetics and Evolution>Molecular Genetics>Chemistry of Nucleic Acids
Which of the following Nitrogen bases is found only in DNA ?
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Biology>Genetics and Evolution>Molecular Genetics>Chemistry of Nucleic Acids
Nuclear proteins associated with DNA molecule in eukaryotes are _______ and _______.
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Biology>Genetics and Evolution>Molecular Genetics>Chemistry of Nucleic Acids
Purines found both in DNA and RNA are
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Biology>Genetics and Evolution>Molecular Genetics>Chemistry of Nucleic Acids
DNA fragments are
MEDIUM
Biology>Genetics and Evolution>Molecular Genetics>Chemistry of Nucleic Acids
Choose the correct statement
I) Secondary metabolites do not have identifiable physiological processes in plants, fungal and microbial cells
II) Bio macromolecules are acid insoluble organic compounds with mol wt more than 10,000 daltons
III) Uridylic acid and cytidylic acids are derived from uracil and cytosine by esterification
IV) Lecithin and lectin are phospholipids found in cell membrane
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Biology>Genetics and Evolution>Molecular Genetics>Chemistry of Nucleic Acids
What does the given diagram represent?
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Biology>Genetics and Evolution>Molecular Genetics>Chemistry of Nucleic Acids
Uridine monophosphate is found in
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Biology>Genetics and Evolution>Molecular Genetics>Chemistry of Nucleic Acids
A nucleoside differs from a nucleotide as it lacks the
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Biology>Genetics and Evolution>Molecular Genetics>Chemistry of Nucleic Acids
Ratio of DNA:Histone is 1:1 in Eukaryotes. In Prokaryotes, it is:
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Biology>Genetics and Evolution>Molecular Genetics>Chemistry of Nucleic Acids
A nucleotide consists of a sugar molecule, _____ group and a nitrogenous base.
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Biology>Genetics and Evolution>Molecular Genetics>Chemistry of Nucleic Acids
The 3′- carbon is linked with the 5′- carbon in the DNA and RNA via _____ bond.
MEDIUM
Biology>Genetics and Evolution>Molecular Genetics>Chemistry of Nucleic Acids
Choose the incorrect option w.r.t. deoxyribonucleoside triphosphate.
MEDIUM
Biology>Genetics and Evolution>Molecular Genetics>Chemistry of Nucleic Acids
Refer to the given figure of the nucleosome and select the option that correctly identifies the parts A, B and C .
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Biology>Genetics and Evolution>Molecular Genetics>Chemistry of Nucleic Acids
Which one of the following is a base analogue?
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Biology>Genetics and Evolution>Molecular Genetics>Chemistry of Nucleic Acids
Histone proteins are found in chromosomes and are rich in I amino acids like II and III.
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Biology>Genetics and Evolution>Molecular Genetics>Chemistry of Nucleic Acids
Phosphodiester bond is formed when exactly two hydroxyl groups in _____ react with a hydroxyl group on other molecules forming ester bonds. 
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Biology>Genetics and Evolution>Molecular Genetics>Chemistry of Nucleic Acids
The nitrogenous bases in DNA are
MEDIUM
Biology>Genetics and Evolution>Molecular Genetics>Chemistry of Nucleic Acids
The one which is not present in DNA is :
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Biology>Genetics and Evolution>Molecular Genetics>Chemistry of Nucleic Acids
How many types of histone proteins take part in the composition of chromosome?