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Structure of DNA

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What is the significance of adenine, thymine, guanine, and cytosine in the structure of a DNA molecule?

Explain how these four nucleotides bond with each other and other components of DNA.

What evidence is there to support that this code carries hereditary instructions?

Would like your answers to these questions and sources where your found your answers.

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Solution Preview

What is the significance of adenine, thymine, guanine, and cytosine in the structure of a DNA molecule?
Explain how these four nucleotides bond with each other and other components of DNA.
What evidence is there to support that this code carries hereditary instructions?

DNA is a macromolecule and consists of repeating units called as nucleotides. Each nucleotide is composed of
1. phosphate group
2. Pentose sugar
3. Nitrogenous bases

There are two group of nitrogenous bases :
1. Purine
2. Pyrimidine

Adenine and Guanine are purine and Thymine and Cytosine are pyrimidine present in DNA

DNA molecule is a double stranded helical structure in which sugar and phosphate forms a back bone and ...

Solution Summary

DNA is a macromolecule and consists of repeating units called as nucleotides. Each nucleotide is composed of phosphate group, Pentose sugar and Nitrogenous bases. Experimental proof of DNA being genetic material was given by Avery, Macleod and McCarty experiment.

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