The monomers (building blocks) of DNA are called

• nitrogen bases
• nucleotides
• sugar
• phosphates

What is the name of the enzyme that adds nucleotides accordin to the base pair rules during replication?

• helicase
• polymerase
• protease
• lipase

The sugar found in DNA is called?

• Ribose
• Glucose
• Deoxyribose
• Sucrose

Three parts of a nucleotide are

• Adenine and Guanine
• Sugar, nitrogen base and protein
• Glucose
• Sugar, phosphate and Nitrogen Base

In DNA Replication, A always bonds with

• Cytosine
• Guanine
• Thymine
• Enzymes

Cytosine always bonds with

• G
• A
• T
• U

The nitrogen bases are held together by

• weak hydrogen bonds
• sugar
• phosphate
• nitrogen bases

DNA is shaped like a

• Double Helix
• Ladder
• Helix
• Circular chain

If adenine makes up 15% of the DNA molecule, what percent makes up cytosine?

• 15%
• 30%
• 70%
• 35%

Who receives credit for the discovery of the DNA structure?

• Chargaff
• Watson and Crick
• Crick and Franklin
• Franklin