Molekul DNA

Which of the following best describes a DNA molecule?

• double helix
• contains ribose
• made of amino acids
• contains Uracil

What is the primary function of DNA in living organisms?

• energy storage

• genetic information storage

• protein synthesis

• cellular respiration

Which of the following components is NOT part of a DNA nucleotide?

• phosphate group

• deoxyribose sugar

• nitrogenous base

• amino acid

In DNA, which base pairs with adenine?

• cytosine

• thymine

• guanine

• uracil

What type of bond holds the two strands of DNA together?

• ionic bond

• hydrogen bond

• covalent bond

• disulfide bond