DNA Facts

1. What does DNA stand for?

• a. Deoxyribonucleic acid

• b. Deoxyribonuclear acid

• c. Dioxyribonucleic acid

• d. Deoxyribonucleic atom

2. What shape does DNA resemble?

• a. A circle

• b. A spiral staircase

• c. A straight line

• d. A cube

Humans have ______ pairs of chromosomes.

4. What is the role of proteins in the body?

• a. They store energy

• b. They build structures

• c. They create DNA

• d. They help with digestion

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5. What are the four bases of DNA?

• a. Adenine, Cytosine, Guanine, Thymine

• b. Adenine, Cytosine, Guanine, Tyrosine

• c. Thymine, Cytosine, Guanine, Uracil

• d. Thymine, Adenine, Guanine, Cytosine

6. What is the average number of genes in humans?

• a. 10,000

• b. 20,000

• c. 30,000

• d. 40,000

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7. What is gene therapy used for?

• a. To clone humans

• b. To cure diseases

• c. To create GMOs

• d. To study evolution

8. What percentage of genes do humans share with chimpanzees?

• a. About 85%

• b. About 96%

• c. About 50%

• d. About 60%

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9. What can genetically modified organisms (GMOs) do?

• a. Change DNA in animals

• b. Have traits like bigger fruits

• c. Live longer than regular plants

• d. Produce more seeds

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10. Which of the following is NOT a concern associated with GMOs?

• a. Environmental damage

• b. Health risks

• c. Lack of food production

• d. Unpredictable results

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