Home
Class 11
BIOLOGY
Which is not a pyrimidine?...

Which is not a pyrimidine?

A

Guanine

B

Thymine

C

Uracil

D

Cytosine

Text Solution

Verified by Experts

The correct Answer is:
A

(A) Guanine and adenin are not pyramidine, these are purine.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • BIOMOLECULES

    A2Z|Exercise Section A : Topicwise Questions Topic 2: Proteins|10 Videos
  • BIOMOLECULES

    A2Z|Exercise Section A : Topicwise Questions Topic 3: Polysaccharide, Nucleic Acids, Bonding And Living State|43 Videos
  • BIOLOGICAL CLASSIFICATION

    A2Z|Exercise Mock Test Assertion - Reasoning Question|5 Videos
  • BODY FLUIDS AND CIRCULATION

    A2Z|Exercise Section D: Chapter-end Test|50 Videos

Similar Questions

Explore conceptually related problems

Which purine and pyrimidine bases are present in DNA and RNA ?

What are pyrimidines ?

Knowledge Check

  • Which of the following is not a pyrimidine ?

    A
    Thymine
    B
    Uracil
    C
    guanine and adenine
    D
    Cytosine
  • Which of the following is not a pyrimidine

    A
    Thymine
    B
    Uracil
    C
    Guanine
    D
    Cytosine
  • Which of the following is not a pyrimidine base?

    A
    Cytosine
    B
    Thymine
    C
    Uracil
    D
    Guanine
  • Similar Questions

    Explore conceptually related problems

    What purine and pyrimidine bases are present in DNA and RNA ?

    Which of the following is not a pyrimidine N_(2) base-

    Which purine & pyrimidine bases are paired together by H- bonds in DNA-

    Substitution of a purine base with a pyrimidine base or vice versa is called

    Read the below Statements about the structure of genetic material and identify the correct ones. I. Adenine and guanine are bases that have a double ring structure , cytosine, thymine and uracil are based with a single ring structure . II. An adenine nucleotide from DNA is the same as an adenine nucleotide from RNA , DNA adenine pairs with uracil and RNA adenine pairs with thymine. III. The base pairing that occurs in a double DNA helix and when RNA is synthesised during transcription follows the rule that a purine pairs with a pyrimidine. IV. The two Polynucleotides on a DNA molecule run in opposite directions so that the double helix formed has two strands that are parallel to each other.