DNA Structure Quiz

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 

The backbone of the DNA structure is composed of:

• Sugar and Phosphate
• Sugar
• Phosphate
• Nitrogenous Base

The building block of DNA is called...

• Deoxyribose

• Purines

• Nucleotide

• Pyrimidine

A nucleotide is made up of

• A nitrogen,a ribose sugar, and protein.

• A phosphate, a deoxyribose sugar, and a carbon base.

• Adenine, guanine, cytosine, and thymine.

• A phosphate, deoxyribose sugar, and a nitrogen base.

Which organelle is DNA usually found in?

• lysosome

• nucleus

• ribosome

• vacuole

Which of the following best describes a DNA molecule?

• double helix
• contains ribose
• made of amino acids
• contains Uracil

The twisted ladder shape of DNA is called a ______________?

• twisted noddle

• winding helix

• double helix

• triple helix