DNA Quiz (History, Structure & Function)

1. Choose the first three nucleotides of the complementary DNA strand. CCG

• GGT
• CCT
• GGC
• TTA

2. Which nucleotide base is not found in DNA?

• Thymine
• Uracil
• Adenine
• Guanine

3. Which scientists figured out the three-dimensional structure of DNA by using a model of metal and wood?

• Hershey and Chase
• Watson and Crick
• Pauling and Franklin
• Chargaff and Griffith

4. The four types of nucleotides that make up DNA are named for their

• hydrogen bonds
• nitrogenous bases
• phosphate groups
• ring-shaped sugars

5. After examining the DNA of difference organisms, which of the following did the scientist Chargaff conclude about the four bases?

• A=T and C=G
• A=C=G=T
• A=C and G=T
• A+T=C+G

6. Which of the following DNA sequences is complementary to the base sequence ACCGTAT

• GTTACGC
• UCCGTAT
• TGGCATA
• CAATGCG

7. Combining the work of other scientists with their own research, Watson and Crick discovered that two strands of DNA join together to form a

• nucleotide
• X in a circle
• double helix
• covalent bond

8. What holds base pairs together?

• hydrogen bonds
• sugar-phosphate backbones
• pairs of double-ringed nucleotides
• nitrogen-carbon bonds

9. DNA stands for:

• Ribonucleic acid
• Deoxyribonucleic acid
• Deoxyribose
• Ribonucleic

10. A nucleotide is made up of these three parts:

• Phosphate, Carbohydrate, Base
• Phosphate, Lipid, Sugar
• Phosphate, Sugar, Base
• None of the above