DNA Structure Quiz Review

Which nitrogen base pairs with Thymine?

• Adenine
• Guanine
• Cytosine
• Arganine 

Which nitrogen base pairs with Guanine?

• Adenine
• Cytosine
• Thymine
• Arganine 

Which nitrogen base pairs with Adenine?

• Arganine
• Cytosine
• Guanine
• Thymine 

Which nitrogen base pairs with Cytosine?

• Arganine
• Thymine
• Guanine
• Adenine 

Identify the correct Purine nitrogen bases.

• Thymine and Cytosine
• Adenine and Guanine
• Adenine and Thymine
• Guanine and Cytosine 

Identify the correct Pyrimidine nitrogen bases.

• Adenine and Guanine
• Thymine and Guanine
• Thymine and Cytosine
• Adenine and Cytosine 

The backbone of the DNA structure is composed of:

• Sugar and Phosphate
• Sugar
• Phosphate
• Nitrogenous Base

The two ring nucleotides are called:

• Thymine and Cytosine
• Adenine and Thymine
• Thymine and Guanine
• Adenine and Guanine 

The one ring nucleotides are called:

• Thymine and Cytosine
• Adenine and Thymine
• Thymine and Guanine
• Adenine and Guanine 

The bond that holds the sugar and the phosphate together are STRONG bonds called:

• Hydrogen Bonds
• Nitrogen Bonds
• Carbon Bonds
• Phosphodiester Bonds