DNA

What type of biomolecule is DNA?

• carbohydrate

• lipid

• nucleic acid

• protein

What is the monomer of DNA?

• amino acid

• glucose

• glycerol & fatty acid chains

• nucleotide

Which of these are part of a nucleotide? Check all that apply.

• carboxyl group

• nitrogenous base

• phosphate group

• sugar

Which 2 parts of the nucleotide are the same on every nucleotide in DNA? Check all that apply.

• carboxyl group

• nitrogenous base

• phosphate group

• sugar

Which part of the nucleotide is different for the nucleotides making up DNA?

• carboxyl group

• nitrogenous base

• phosphate group

• sugar

Which base pairs with thymine?

• adenine

• cytosine

• guanine

• thymine

Which base pairs with cytosine?

• adenine

• cytosine

• guanine

• thymine

What type of bond holds the nitrogenous bases together in the DNA molecule?

• hydrogen bond

• ionic bond

• metallic bond

A strand of DNA has the following bases.

AAT-CAT-GGC-TAG

What is the complementary strand?

• CCG-ACG-TTA-GCT

• AAT-CAT-GGC-TAG

• TTA-GTA-CCG-ATC

• GGC-CAG-TTG-GCA

Which enzyme breaks the hydrogen bonds between bases during DNA replication?

• helicase

• ligase

• polymerase

• primase