DNA Structure and Function Concepts

Which of the following is the basic unit of DNA?

• Nucleotide

• Amino Acid

• Protien

• Polypeptide

What is the function of the nitrogenous bases in DNA.

• To store genetic information.

• To catalyze chemical reactions.

• To create proteins.

• To form the structural backbone of the molecule.

Tags

NGSS.HS-LS1-1

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

• Covalent bonds

• Hydrogen bonds.

• Ionic bonds.

• Peptide bonds.

What is the name of sugar found in the backbone of DNA?

• Deoxyribose.

• Glucose.

• Ribose.

• Fructose.

Which of the following statements is true about the structure of DNA?

• DNA is made up of two parallel strands.

• The two strands of DNA are antiparallel.

• DNA strands are identical in direction.

• The two strands of DNA have different lengths.