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प्रश्न
Write the structure of D-ribose.
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उत्तर
संबंधित प्रश्न
The following statement applies to DNA only, some to RNA only, and some to both. Label them accordingly.
The polynucleotide contains uracil. (________)
In which of the following structure of DNA carries genetic information of the organism?
Sugar present in DNA is ___________
Define the following term.
nucleoside
An example of feedback inhibition is ______.
Write the characteristic feature of DNA.
______ is a single ring compound.
______ is NOT a pyrimidine.
Watson and Crick are known for their discovery of ______.
____________ bonds are absent in DNA.
Nucleotides = ____________.
Nucleotides are linked together through ____________.
The correct statement regarding RNA and DNA respectively is ____________.
The pyrimidine bases present in DNA are ____________.
Give any three differences between DNA and RNA.
What are different types of RNA which are found in cells?
Write a note on the formation of α-helix.
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 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
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 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.
Name two kinds of nucleic acids.
Match List - I with List - II.
| List - I | List - II |
| A. Adenosine | I. Nitrogen base |
| B. Adenylic acid | II. Nucleotide |
| C. Adenine | III. Nucleoside |
| D. Alanine | IV. Amino acid |
Choose the option with all correct matches.
The size of mRNA is generally related to ______.
