A new type of nucleic acid molecule is found have a base composition of 30% adenine, 20% thymine, 17% cytosine and 33% guanine. The molecule is probably:

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    No, the gene is not bigger than DNA... Hereditary information found in genes that are located in the chromosomes of each cell. Chromosomes located in the nucleus of the cell that contains stretches of DNA called as genes. Genes contain coded information that controls the hereditary of particular traits. A gene is a short piece of DNA which is the hereditary material in organisms.
    A human cell contains many thousands of different genes and each gene carries a single unit of information.
    To conclude, DNA molecules contain thousands of genes that are located inside chromosomes. Therefore, if the chromosome is made up of DNA, thus it is larger than the DNA itself. Genes are strands of DNA. Therefore, the gene is smaller than chromosome.

    • 22 Nov 2018 @ 08:36
  • Replied by Admin

    First of all, I want to apologize for late reply as website was under construction.


    Single stranded DNA molecule.


    According to Chargaff’s rule :

    Concentration of adenine [A] =concentration of thymine [T]

    Therefore if [A]=30% then the [T] should be equal to 30%. If it is So, then the molecule is double stranded DNA molecule. So this rule is not applicable, so answer is not double stranded DNA molecule.

    The possibility of Adenine=30% and Thymine=20% is only in single stranded DNA molecule.

    And in this question, there is no uracil given so answer is not RNA. As we know in RNA uracil is present instead of thymine...

    The DNA is made up of four kinds of nitrogenous bases which include:

    Guanine (G) Cytosine (C) Adenine (A) Thymine (T)

    Two of the bases are purines -- adenine and guanine. The pyrimidines are thymine and cytosine.

    Adenine pair with thymine by two hydrogen bonds. Guanine pair with cytosine by three hydrogen bonds.

    The RNA is made up of four kinds of nitrogenous bases which include:

    Guanine (G) Cytosine (C) Adenine (A) Uracil (U)

    • 31 Jul 2018 @ 09:00

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