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प्रश्न
Give names of the purines.
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उत्तर
Adenine and Guanine
APPEARS IN
संबंधित प्रश्न
The following statement applies to DNA only, some to RNA only, and some to both. Label them accordingly.
The polynucleotide contains guanine. (_______)
Draw a neat diagram for the following:
One purine base from nucleic acid
Draw structure of following.
2-Deoxy-D-ribose
Draw structure of following.
Cytosine
Given below is the diagrammatic representation of one of the categories of small molecular weight organic compounds in the living tissues. Identify the category shown & one blank component “ X” in it.
Distinguish between Nitrogen base and a base found in inorganic chemistry.
______ is a single ring compound.
Identify the monomer of nucleic acid.
In an experiment, DNA was found to have 31 % adenine and 19% guanine. Identify the percentage of cytosine in the given molecule of DNA.
In 1924, Feulgen showed that ______ contain DNA.
Watson and Crick are known for their discovery of ______.
In which of the following RNA is genetic material?
DNA consists of two complementary nucleotide chains. If the sequence of nucleotide in one of the chains is 5' AGCTTCGA3', then the nucleotide sequence in the other chain shall be ______.
____________ bonds are absent in DNA.
Nucleotides = ____________.
Purine derivative among the following bases is ____________.
Nucleotides are linked together through ____________.
If one strand of the DNA has the sequence ‘ATGCTTGA’, then the sequence of complementary strand would be ____________.
Give any three differences between DNA and RNA.
When you take cells or tissue pieces and grind them with an acid in a mortar and pestle, all the small biomolecules dissolve in the acid. Proteins, polysaccharides and nucleic acids are insoluble in mineral acid and get precipitated. The acid soluble compounds include aminoacids, nucleosides, small sugars etc. When one adds a phosphate group to a nucleoside, one gets another acid soluble biomolecule called ______.
Draw a neat diagram for the following:
AMP
Which carbon atom of deoxy Ribose sugar in DNA does not contain \[\begin{array}{cc}|\phantom{...}\\\ce{- C - OH}\\|\phantom{....}\\ \end{array}\] bond?
The following ratio is generally constant for a given species
Watson and Crick (1953) proposed DNA double helix model and won the Nobel Prize; their model of DNA was based on:
- X-ray diffraction studies of DNA were done by Wilkins and Franklin.
- Chargaff’s base equivalence rule
- Griffith's transformation experiment
- Meselson and Stahl's experiment
Write the structure of D-ribose.
Identify the INCORRECT statement regarding nuclein.
