Understanding DNA

What does DNA stand for?

• Deoxyribonucleic Acid

• Dinucleotide Acid

• Deoxyriboside Acid

• Dinucleic Acid

Where is DNA found in eukaryotic cells?

• Ribosomes

• Nucleus

• Mitochondria

• Cytosol

What are the two types of nitrogenous bases in DNA?

• Cytosine and Guanine

• Adenine and Thymine

• Purines and Pyrimidines

• Monomers and Polymers

What shape does the DNA molecule form?

• Linear

• Triple helix

• Circular

• Double helix

Which scientists are credited with discovering the shape of DNA?

• Watson and Crick

• Mendel and Morgan

• Watson, Crick, Wilkins, and Franklin

• Darwin and Mendel

How many hydrogen bonds link Adenine and Thymine?

• Three

• Four

• Two

• One

Which nitrogen bases form three hydrogen bonds together?

• Cytosine and Guanine

• Adenine and Guanine

• Cytosine and Thymine

• Adenine and Thymine

How can you identify a pyrimidine base?

• It has a single ring structure.

• It is only found outside the nucleus.

• It forms three hydrogen bonds.

• It has a double ring structure.