G10 - 13.2 the Structure of DNA

Which type of bond connects the sugar of one nucleotide to the phosphate of another?

• Hydrogen bond

• Ionic bond

• Covalent bond

• Metallic bond

What does the term "antiparallel" refer to in the context of DNA?

• The way DNA coils

• The orientation of the two strands

• The pairing of nitrogen bases

• The replication process

Which part of the nucleotide varies among different nucleotides?

• Sugar

• Phosphate group

• Nitrogen base

• All of the above

Which of the following is NOT a nitrogenous base found in DNA?

• Uracil

• Adenine

• Cytosine

• Thymine

What is the primary function of DNA?

• Catalysis

• Energy storage

• Structural support

• Information storage

Which scientist first described the double helix structure of DNA?

• Gregor Mendel

• Rosalind Franklin

• James Watson and Francis Crick

• Charles Darwin

What sugar is found in the DNA molecule?

• Ribose

• Glucose

• Deoxyribose

• Fructose

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

• Hydrogen bonds

• Metallic bonds

• Covalent bonds

• Ionic bonds

Which of the following pairs are complementary base pairs in DNA?

• Adenine - Cytosine

• Guanine - Thymine

• Adenine - Thymine

• Cytosine - Uracil

What are the three components of a nucleotide?

• Sugar, phosphate, nitrogen base

• Sugar, amino acid, nitrogen base

• Phosphate, fat, nitrogen base

• Sugar, phosphate, glucose