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Following are a group of Nitrogeneous bases present in Nucleic acids. What is the total number of Pyrimidines in this group? Uracil, Guanine, Thymine, Adenine, Cytosine

Following are a group of Nitrogeneous bases present in Nucleic acids. What is the total number of Pyrimidines in this group? Uracil, Guanine, Thymine, Adenine, Cytosine Correct Answer 3

Concept:

Nucleic acids:

  • The role of nucleic acids is to see how carbohydrates, proteins, and enzymes originate in the cell and how they preserve their structural formation.
  • Nucleic acids are defined as the long-chain polymers present in high concentrations in the nuclei of cells in which the monomeric units are nucleotides.
  • The molecules where one of the bases is combined with sugar is called nucleoside.
  • When a phosphate group is also attached to the nucleoside, it is called a nucleotide.
  • Nucleic acids are responsible for the biosynthesis of proteins and the transmission of hereditary characters.
  • There are two types of nucleic acids DNA, RNA.
  • DNA molecules are very large and are found in the nucleus of the cell.
  • On the other hand, RNA molecules are much smaller and are found outside the cell.

Explanation:

  • A heterocyclic nitrogen-containing organic base with a ring structure is called nitrogenous bases.
  • There are two types of bases present in nucleic acids and they are- purines and pyrimidines.
  • The bases derived from purine are:
    • A. Adenine 
    • B. Guanine 
  • The bases derived from pyrimidines are - 
    • Cytosine
    • Thymine
    • Uracil 
  • The base uracil is present in RNA whereas thymine is present in DNA.
  • The structures of heterocyclic bases present in RNA and DNA are shown below.

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Hence, total number of Pyrimidines is 3.

Related Questions

Consider the following statements and choose the correct answer:
1. Adenine pairs with thymine (A : T) and guanine with cytosine $$\left( {G \vdots C} \right)$$
2. Adenine and thymine are joined by three hydrogen bonds through atoms
3. Guanine and cytosine are joined by two hydrogen bonds through atoms
4. The weak hydrogen bonding enables the two strands of the DNA to separate during replication
Consider the following statements regarding Genome Sequencing: 1. Genome sequencing is figuring out the order of DNA nucleotides, or bases, in a genome—the order of Adenine, Cytosine, Guanines, and Thymine that make up an organism's DNA. 2. Human genome is made up of 46 chromosome pairs with a total of about 3 billion DNA base pairs. 3. There are 24 distinct human chromosomes: 22 autosomal chromosomes, plus the sex-determining X and Y chromosomes. Which of the statements given above is/are correct?
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Consider the following statements regarding the historical aspects of DNA and choose the correct answer:
1. Meischer isolated nucleic acids, which he called nuclein
2. Altmann used the term nucleic acid to replace nuclein
3. Fischer identified pyrimidines and purines
4. Griffiths discovered bacterial transformation by DNA
10% of the bases in a DNA molecule are guanine. What could be the % of Thymine in that sample? 
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Which of the following is/are correctly matched? 1. Chromosomes: Thread-like structures present in the nucleus 2. RNA: It is chemically similar to DNA but it contains ribose as its sugar and substitutes the nitrogenous base uracil for thymine.
Each of the question below consists of a question and three statements number I, II and III given below it. You have to decide whether the data provided in the statement are sufficient to answer the question. Two person X and Y together can make 25% of total number of bricks in 4.8 days. Another person Z can make 50 bricks in a day. What is the time taken by person X and Z together to make the total number of bricks? I. Dimensions of a brick is (3cm × 4cm × 5cm) while the dimension of a cuboids when all the bricks are put together is (72cm × 80cm × 50cm) and ratio of number of days taken by X and Y alone to make the total number of bricks is 3 : 2. II. The total number of bricks is 4800 and person Y can make 150 bricks in day. III. Total volume of all the bricks together is 1.008m3 and dimension of a bricks is (5cm × 6cm × 7cm) and time taken by Z to make total number of bricks is 200 % more than the total time taken by person Y to make total number of bricks.
Thymine is present in the place of Uracil in DNA.
Purines and pyrimidines form glycosidic linkage with the purines and pyrimidines at the N6 position.