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प्रश्न
Give scientific reasons:
On complete hydrolysis DNA gives equimolar quantities of adenine and thymine.
Why on complete hydrolysis DNA gives equimolar quantities of adenine and thymine?
उत्तर
- Both the strands of DNA double helix are complementary to each other.
- That is a number of bases on each strand are equal and complementary to each other.
- As adenine pairs with thymine; the number of adenine bases on one strand and thymine on another are equal in number.
Thus, on complete hydrolysis DNA gives equimolar quantities of adenine and thymine.
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:
dAMP
The sugar component of nucleotide unit in RNA is _________________
In which of the following structure of DNA carries genetic information of the organism?
Sugar present in DNA is ___________
Draw structure of following.
2-Deoxy-D-ribose
Draw structure of following.
Cytosine
Distinguish between Nitrogen base and a base found in inorganic chemistry.
Pentose sugar present in RNA is ______
______ is NOT a pyrimidine.
Watson and Crick are known for their discovery of ______.
Identify the CORRECT statement.
What type of linkages holds together monomers of DNA?
Write a note on the formation of α-helix.
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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 ______.
What type of sugar molecule is present is DNA?
Which of the following is not present in a nucleotide?
Which carbon atom of deoxy Ribose sugar in DNA does not contain \[\begin{array}{cc}|\phantom{...}\\\ce{- C - OH}\\|\phantom{....}\\ \end{array}\] bond?
Which one of the following pairs of nitrogenous bases of nucleic acids, is wrongly matched with the category against it?
The following ratio is generally constant for a given species
Refer to the given figure.
Select the option which correctly identifies.
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
Which of the following are correct combination of purine bases?
