Nucleic Acids Quiz

What are nucleic acids responsible for within a species?

• Energy production

• Inheritance

• Photosynthesis

• Respiration

What are the three components of a nucleotide?

• A pentose sugar, a nitrogenous base, a phosphate group

• A hexose sugar, a lipid, a protein

• A glucose molecule, a fatty acid, a phosphate group

• A ribose sugar, a protein, a lipid

What type of reaction joins nucleotides together to form polynucleotide chains?

• Hydrolysis reactions

• Condensation reactions

• Oxidation reactions

• Reduction reactions

Where is the phosphate group attached in a nucleotide?

• At the 1’-carbon

• At the 3’-carbon

• At the 5’-carbon

• At the 2’-carbon

What forms the backbone of a polynucleotide chain?

• Lipids and proteins

• Sugars and phosphates

• Amino acids and lipids

• Proteins and carbohydrates

Which of the following bases is a purine?

• Cytosine

• Thymine

• Adenine

• Uracil

What sugar is found in the nucleotides of RNA?

• Deoxyribose

• Ribose

• Glucose

• Fructose

Which base in DNA is replaced by uracil in RNA?

• Adenine

• Guanine

• Cytosine

• Thymine

What is the structure formed by two polynucleotide strands in DNA?

• Single helix

• Double helix

• Triple helix

• Quadruple helix

Which type of RNA brings amino acids to the ribosome?

• Messenger RNA (mRNA)

• Transfer RNA (tRNA)

• Ribosomal RNA (rRNA)

• Nuclear RNA (nRNA)