DNA Structure and Replication POGIL

What are the three parts of a nucleotide?

• Phosphate, Deoxyribose sugar, Nitrogen base

• Phosphate, Ribose sugar, Nitrogen base

• Phosphate, Deoxyribose sugar, Oxygen base

• Phosphate, Ribose sugar, Oxygen base

Which nucleotide component contains nitrogen?

• Phosphate

• Deoxyribose sugar

• Nitrogen base

• Oxygen base

What parts of the nucleotides make up the sides (backbone) of the DNA ladder?

• Nitrogen bases

• Phosphate and Deoxyribose sugar

• Phosphate and Ribose sugar

• Deoxyribose sugar and Nitrogen base

Are the rungs of the DNA ladder parallel or antiparallel?

• Parallel

• Antiparallel

• Neither

• Both

How many hydrogen bonds connect adenine and thymine?

• Two

• Three

• Four

• One

What type of biological molecule is DNA helicase?

• Protein

• Carbohydrate

• Lipid

• Nucleic acid

Why is DNA replication called semi-conservative?

• Each new DNA molecule has one old and one new strand

• Each new DNA molecule has two new strands

• Each new DNA molecule has two old strands

• Each new DNA molecule has three strands

What is the role of helicase?

• To add base pairs

• to glue the okazaki fragments together

• to break the bonds of the nucleotides

• to create a starting point on the DNA