U5 DNA Structure Quiz

1. What does DNA stand for?

• Deoxyribonucleic acid
• Denitrogenous acid
• Deribonucleic acid
• Diribonucleic acid

2. What makes up a nucleotide?

• sugar, oxygen, and nitrogen base
• sugar, hydrogen, and nitrogen base
• sugar, phosphate, and hydrogen
• sugar, phosphate, and nitrogen base

2. What makes up a nucleotide of DNA?

• sugar, oxygen, and nitrogen base
• Deoxyribose Sugar, Phosphate, and Nitrogenous base
• sugar, hydrogen, and nitrogen base
• sugar, phosphate, and hydrogen

3. Which nitrogen base pairs with adenine?

• cytosine
• pyrimidine
• thymine
• guanine

4. What kind of bonds connect the two strands of DNA at the nitrogen bases?

• hydrogen
• covalent
• ionic
• van der wals

4. What kind of bonds connect the phosphate group to the (deoxy) ribose sugar?

• hydrogen
• covalent
• ionic
• van der wals

6. If a strand of DNA reads ATT GGC CAT, what is the complementary strand?

• TGG TTA AGG
• TAA CGA GGA
• TAA CCG GTA
• TAA CCG AAT

10. DNA must stay in the ________________ of the cell.

• cytoplasm
• cell membrane
• nucleus
• vacuole

What is the purpose of the sugar phosphate backbone?

• code for genes
• structure and support
• holds the nitrogen bases together weakly
• makes you unique from others

How do we often describe the structure of DNA?

• single strand
• circular pattern
• double helix
• box pattern