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## LESSON 12 - NUCLEIC ACIDS ### Watch video 2 ### Biological Significance: 1. Responsible for storage and transmission of genetic information code. 2. For the precise synthesis of protein characteristics of individual cells. ### Properties of Nucleic Acids: 1. Insoluble in alcohol. 2. Slightly s...

## LESSON 12 - NUCLEIC ACIDS ### Watch video 2 ### Biological Significance: 1. Responsible for storage and transmission of genetic information code. 2. For the precise synthesis of protein characteristics of individual cells. ### Properties of Nucleic Acids: 1. Insoluble in alcohol. 2. Slightly soluble in cold water, but readily dissolved in hot water and dilute alkalis, forming alkali salts. 3. Precipitated by HCl and by excess of CH3COOH (acetic acid). ### NUCLEIC ACIDS - Large, complex molecules composed of C, O, H, N, and P. - 2 types are RNA, ribonucleic acid, and DNA, deoxyribonucleic acid. ### DNA vs RNA - **Nucleobases** are the building blocks of both DNA and RNA. - **DNA** has thymine and **RNA** has uracil as the base pairing components. - **DNA** has deoxyribonucleic acid and **RNA** has ribonucleic acid. - The difference between the two is the presence of a hydroxyl group at the 2' position of the ribose sugar in ribonucleic acid. - Both DNA and RNA have a helical structure with the helix of sugar-phosphates on the outside. ### Nucleic Acid -...(truncated text)