26. Nucleic Acids and Protein Synthesis

Draw the full structure of the DNA trinucleotide G-A-T and label its 5’ and 3’ ends.

Draw the following primary structure based on the following description:

Draw 3 nucleotides with deoxyribose sugars with dTMP bases connected by phosphodiester bonds.

Is a DNA molecule neutral, negatively charged, or positively charged? Explain.

What is the difference between the 3′ end and the 5′ end of a polynucleotide?

Are polynucleotides synthesized 3′ to 5′ or 5′ to 3′?

Draw the complete structure of the RNA dinucleotide U-C. Identify the 5′ and 3′ ends of the dinucleotide.

For the following molecule:

a. Label the three nucleic acid building blocks it contains.

What components join together to form the backbone of a nucleic acid?

What component in a nucleic acid determines the 5' free end?

Draw the condensed structural formula for the dinucleotide G C that would be in RNA.

What is similar about the primary structure of RNA and DNA?

Draw the dinucleotide AT that would be found in DNA. Label the 5' and 3' ends of your structure. Identify the phosphodiester bond.

Describe the differences in the two ends of a nucleic acid.