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प्रश्न
Give names of the purines.
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उत्तर
Adenine and Guanine
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संबंधित प्रश्न
Give scientific reasons:
On complete hydrolysis DNA gives equimolar quantities of adenine and thymine.
The following statement applies to DNA only, some to RNA only, and some to both. Label them accordingly.
The polynucleotide is double stranded. (_______)
The following statement applies to DNA only, some to RNA only, and some to both. Label them accordingly.
The polynucleotide contains uracil. (________)
Sugar present in DNA is ___________
Draw structure of following.
2-Deoxy-D-ribose
Distinguish between Nitrogen base and a base found in inorganic chemistry.
Write the characteristic feature of DNA.
Explain the structure and function of different types of RNA.
Pentose sugar present in RNA is ______
Identify the monomer of nucleic acid.
______ is NOT a pyrimidine.
Watson and Crick are known for their discovery of ______.
DNA differs from RNA in ______.
____________ bonds are absent in DNA.
Identify the CORRECT statement.
Which of the following is not present in DNA?
What is the number of \[\begin{array}{cc}\\\backslash\phantom{.......}\\\phantom{}\ce{C = O}\\/\phantom{........}\end{array}\] groups present in nitrogen bases of nucleic acids, thymine and uracil respectively?
The correct statement regarding RNA and DNA respectively is ____________.
If one strand of the DNA has the sequence ‘ATGCTTGA’, then the sequence of complementary strand would be ____________.
What type of linkages holds together monomers of DNA?
Give any three differences between DNA and RNA.
Complete the flow chart on central dogma.

Which of the following are substituted purines?
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 statements are correct?
- In animals, the causative agent of foot and mouth disease in single stranded RNA Aphthovirus.
-
In animals foot and mouth disease spreads by direct or indirect contact.
-
Anthrax is a disease of domestic animals caused by Bacillus anthracis.
-
Rinderpest is a contagious bacterial disease of cattle.
Define the Nucleic acids.
The size of mRNA is generally related to ______.
