Home
Class 11
BIOLOGY
The purines of DNA are represented by gu...

The purines of DNA are represented by guanine and thymine.

Text Solution

AI Generated Solution

### Step-by-Step Solution 1. **Understanding DNA Structure**: DNA, or deoxyribonucleic acid, is a polynucleotide chain made up of three components: a sugar (deoxyribose), nitrogenous bases, and phosphoric acid. 2. **Identifying Nitrogenous Bases**: The nitrogenous bases in DNA are categorized into two types: purines and pyrimidines. 3. **Listing Purines and Pyrimidines**: - **Purines**: The purines found in DNA are adenine (A) and guanine (G). ...
Promotional Banner

Topper's Solved these Questions

  • BIOMOLECULES

    ICSE|Exercise TEST YOUR PROGRESS (MATCH THE ITEMS OF COLUMN A WITH THE ALTERNATIVE GIVEN.)|2 Videos

  • BIOMOLECULES

    ICSE|Exercise TEST YOUR PROGRESS (VERY SHORT ANSWER TYPE QUESTIONS)|77 Videos

  • BIOMOLECULES

    ICSE|Exercise TEST YOUR PROGRESS (FILL IN THE BLANKS WITH APPROPRIATE WORDS.)|59 Videos

  • BIOLOGY ISC SAMPLE QUESTION PAPER 2019

    ICSE|Exercise PART-II (SECTION -C)|6 Videos

  • BODY FLUIDS AND CIRCULATION

    ICSE|Exercise DIFFRENTIATE BETWEEN|13 Videos

Similar Questions

Explore conceptually related problems

Purines of RNA are

The pyrimidines of DNA are represented by :

Purines and pyrimidines

Thymine is

Thymine is

Assertion: Purine bases present in DNA are adenine and guanine. Reason: The base thymine is present in RNA while base uracil is present in DNA.

If a double - stranded DNA has 30% of guanine , what will be the percentage of adenine and thymine base pairs ?

Which are purines ?

The percentage of adenine in DNA isolated from human liver is observed to be 30.7% . What is the expected percentage of thymine, guanine, and cytosine ?

If the sequences of bases in a segment of a DNA strand were adenine, thymine, cytosine, guanine, then the sequence in a complementary strand of newly made mRNA would be.........

ICSE-BIOMOLECULES-TEST YOUR PROGRESS (STATE WHETHER THE FOLLOWING STATEMENTS ARE TRUE OF FALSE.)
  1. Cellulose is a linear polymer of a-glucose

    Text Solution

    |

  2. Glycogen is a plant protein.

    Text Solution

    |

  3. A polypeptide which maintains the glucose level in blood is insulin.

    Text Solution

    |

  4. The primary structure of a protein is due to peptide bonds.True or fal...

    Text Solution

    |

  5. The Feulgen test is used for the detection of DNA. This statement is t...

    Text Solution

    |

  6. Proteins differ from carbohydrates and lipids in that, they always con...

    Text Solution

    |

  7. alpha- helix of protein is formed by the bending of polypeptide chain ...

    Text Solution

    |

  8. DNA and RNA differ in their sugars and purine base components.

    Text Solution

    |

  9. The structure of a protein can be denatured by heat.

    Text Solution

    |

  10. The type of polysaccharide which is present in rice is glycogen.

    Text Solution

    |

  11. Peptide bonds are present in nucleic acids.This statement is true or f...

    Text Solution

    |

  12. The pentose sugar present in DNA is ribose.This statement is true or f...

    Text Solution

    |

  13. The mRNA is a polymer of ribonucleosides. Is this a true statement

    Text Solution

    |

  14. The purines of DNA are represented by guanine and thymine.

    Text Solution

    |

  15. Enzymes having the same properties but differing in molecular structur...

    Text Solution

    |

  16. The enzymes which catalyse the condensation of two or more molecules c...

    Text Solution

    |

  17. Competitive inhibitors of enzymes compete with the active sites of enz...

    Text Solution

    |

  18. Enzymes are inorganic catalysts which accelerate the rate of biologica...

    Text Solution

    |

  19. In competitive inhibition, Km increases while Vmax remains unchanged.

    Text Solution

    |

  20. Ribozymes are nucleic acids with catalytic power.

    Text Solution

    |