DNA Structure Quiz

What is DNA composed of?

• Nucleotides

• Carbohydrates

• Amino Acids

• Polypeptides

In DNA what base does (T) thymine pair with?

• Adenine

• Cytosine

• Guanine

• Uracil

Which base does (G) guanine pair with?

• Adenine

• Cytosine

• Thymine

• Uracil

If DNA has the sequence CGGATTCCA, what is the complementary strand?

• TTCCTTACG

• GCCUAAGGU

• CGGATTCCA

• GCCTAAGGT

What makes up the back bone of DNA (the sides of the ladder)?

• Nitrogen bases

• Sugar and phosphates

• Sugars and Nitrogen bases

• Nitrogen base and sugar

What makes up the middle of DNA (the rungs of the ladder)?

• Nitrogen bases

• Sugar and phosphates

• Sugars and Nitrogen bases

• Nitrogen base and sugar

Identify the structure labelled A for DNA:

• Deoxyribose Sugar

• Nitrogen base

• Phosphate

• Ribose Sugar

Identify the structure labelled B for DNA:

• Deoxyribose Sugar

• Nitrogen base

• Phosphate

• Ribose Sugar

Identify the structure labelled C for DNA:

• Deoxyribose Sugar

• Nitrogen base

• Phosphate

• Ribose Sugar