DNA Structure and Function Preview Activity

What is the shape of the DNA molecule?

• Linear

• Circular

• Double helix

• Triple helix

What are the building blocks of DNA?

• Amino acids

• Nucleotides

• Fatty acids

• Monosaccharides

Which of the following is NOT a component of a nucleotide?

• Phosphate group

• Sugar

• Nitrogenous base

• Amino acid

Which nitrogenous base pairs with adenine in DNA?

• Cytosine

• Guanine

• Thymine

• Uracil

What is the function of DNA?

• Energy storage

• Structural support

• Genetic information storage

• Catalysis of reactions

Tags

NGSS.HS-LS3-1

Where in the cell is DNA primarily located?

• Ribosome

• Cytoplasm

• Nucleus

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

• Ionic bonds

• Hydrogen bonds

• Covalent bonds

• Metallic bonds

Which enzyme unwinds the DNA double helix during replication?

• Ligase

• Polymerase

• Helicase

• Primase

What is the role of DNA polymerase?

• To unzip the DNA

• To synthesize new DNA strands

• To remove RNA primers

• To join Okazaki fragments

During DNA replication, what is the function of RNA primers?

• To elongate the DNA strands

• To initiate DNA synthesis

• To stabilize the double helix

• To remove errors