Understanding DNA and Nucleic Acids Quiz

What shape does the structure of DNA resemble?

• Single helix

• Double helix

• Triple helix

• Quadruple helix

Which of the following is NOT a type of nucleotide found in DNA?

• Adenine

• Cytosine

• Uracil

• Thymine

What is the primary role of DNA in organisms?

• To produce energy

• To serve as the primary structure for cell membranes

• To store and transmit genetic information

• To speed up chemical reactions

Which of the following best describes the difference between DNA and RNA?

• DNA is double-stranded while RNA is single-stranded

• DNA contains ribose sugar, whereas RNA contains deoxyribose sugar

• DNA is found only in the nucleus, while RNA is found only in the cytoplasm

• DNA is used to make proteins, while RNA is used to store genetic information

Why are nucleic acids important for living organisms?

• They provide the energy cells need to function

• They are the main components of cell membranes

• They carry the genetic blueprint of a cell and play a key role in the synthesis of proteins

• They act as catalysts in biochemical reactions

Which base pairs with Adenine in DNA?

• Guanine

• Cytosine

• Thymine

• Uracil

What component of the nucleotide forms the backbone of the DNA molecule?

• Nitrogenous base

• Phosphate group

• Sugar

• Both B and C

What is the significance of the sequence of nucleotides in DNA?

• It determines the size of the DNA molecule

• It is random and has no significance

• It determines the sequence of amino acids in proteins

• It influences the DNA molecule's ability to replicate

Which of the following is a function of RNA in cells?

• Storing genetic information

• Acting as a primary structural component of cell membranes

• Serving as a template for DNA replication

• Transferring genetic information from DNA to the protein-making sites in the cell

Which of the following is a MONOMER:

• Nucleic Acid
• Nucleotide
• Polysaccharide
• Phospholipid