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.
For entertainment on a Friday night, a genetics professor proposed that
his children diagram a polynucleotide strand of DNA. Having learned
about DNA in preschool, his 5-year-old daughter was able to draw a
polynucleotide strand, but she made a few mistakes. The daughter’s
diagram (represented here) contained at least 10 mistakes.
a. Make a list of all the mistakes in the structure of this DNA
polynucleotide strand.
b. Draw the correct structure for the polynucleotide strand.
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