DNA is made up of deoxyribose sugar, phosphate group and a nitrogen base. DNA is the genetic material that determines the traits of living things and is passed on, in some form, to offspring when living things reproduce. Researchers have identified the nitrogen bases as significant to DNA's function. They also have identified patterns in the structure of DNA that are important. Graduate students in a genetics lab are investigating the number of nitrogenous bases in a single gene in human DNA. They used their results to create the bar graph below. Does the chart below support Chargaff's Rule? Explain why. * Provide at least 3 sentences • % Nitrogenous Base in DNA Sample 30.7 29.3 19.8 20.2

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A:

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Nucleotides

It is an organic molecule made up of three basic components- a nitrogenous base, phosphate,and pentose sugar. The nucleotides are important for metabolic reactions andthe formation of DNA (deoxyribonucleic acid) and RNA (ribonucleic acid). 

Nucleic Acids

Nucleic acids are essential biomolecules present in prokaryotic and eukaryotic cells and viruses. They carry the genetic information for the synthesis of proteins and cellular replication. The nucleic acids are of two types: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). The structure of all proteins and ultimately every biomolecule and cellular component is a product of information encoded in the sequence of nucleic acids. Parts of a DNA molecule containing the information needed to synthesize a protein or an RNA are genes. Nucleic acids can store and transmit genetic information from one generation to the next, fundamental to any life form.