What are the repeating units that DNA is made of called?
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Q:

What are the repeating units that DNA is made of called?

A:

Quick Answer

DNA is made of repeating units called nucleotides. The four nucleotides in DNA are adenine, cytosine, guanine and thymine. Adenine binds with thymine, and guanine binds with cytosine.

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Full Answer

These nucleotides are made of a sugar, deoxyribose, that is bound to a phosphate group and a nitrogenous base. Having different nitrogenous bases is what distinguishes between different nucleotides. Purines have two rings in the nitrogenous base while pyrimidines only have one. Adenine and guanine are purines while thymine and cytosine are pyrimidines Chemical differences in the groups bound to the ring(s) distinguish between adenine and guanine and between thymine and cytosine. Nucleotides bind together to form the double helix structure of DNA. The deoxyribose bind forms the backbone of the DNA, and the nitrogenous bases bind together in the middle to hold both strands of DNA together.

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Related Questions

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    What do DNA and RNA have in common?

    A:

    RNA and DNA are both nucleic acid macromolecules that are comprised of a set of monomers known as nucleotides. They also both contain purines and pyrimidines as their bases and contain pentose sugars as their backbones.

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    What elements are in DNA?

    A:

    DNA, or deoxyribonucleic acid, is a chain that is made up of smaller parts known as nucleotides. These nucleotides are then made up of three different parts of nucleotides: the sugar group, the phosphate group and a group of four different nitrogen bases, which are adenine (A), cytosine (C), guanine (G) and thymine (T).

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    DNA's building blocks are called nucleotides. Nucleotides are made up of a five-carbon sugar, a nitrogenous base and one phosphate. The nitrogenous base can be adenine, cytosine, guanine and thymine, which are often shown on DNA models as the letters A, C, G and T.

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    What are the monomers of DNA and RNA?

    A:

    The monomers of DNA and RNA are nucleotides, which are made up of a phosphate group, a five-carbon sugar and a nitrogenous base. In DNA, the nitrogenous bases are adenine, cytosine, guanine and thymine. In RNA, the nitrogenous bases are adenine, guanine, cytosine and uracil.

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