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Unit 11 - Genetic and Genetic Engineering
- Module
- Biology
- Institution
- PEARSON (PEARSON)
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Genetics and Genetic engineeringWhat type of molecules are nucleic acids? What are they formed from?
Nucleic acids are polynucleotides that is composed of molecules in a chain like structure. Nucleic
acids are made of pentose sugar, an organic base (A= Adenine T= Thymine U= Uracil C= Cytosine
G= Guanine) that is nitrogenous and phosphate. An example of a nucleic acid is Deoxyribonucleic
Acid (DNA). DNA is a double-stranded molecule that is coiled to make a double helix. In a
eukaryotic cell, DNA is mainly found in the nucleus. The rest of the DNA could also be found in the
mitochondria. This nucleic acid is formed from deoxyribose, phosphate, and the organic bases
ATCG. Another example of a nucleic acid is Ribonucleic Acid (RNA). RNA is a single-stranded
molecule. In a eukaryotic cell, RNA is located in the cytoplasm, mainly at the ribosomes. This
polynucleotide consists of ribose, phosphate, and the organic bases AUCG.
Structure of Ribonucleic Acid (RNA):
, Structure of Deoxyribonucleic Acid (DNA):
Structure and Function of Nucleic Acids:
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