DNA Structure

Which is NOT true about DNA?

• It has ribose as a sugar

• It is negatively charged

• It is a double helix

• It is condensed and coiled around proteins to fit into the nucleus

Where in the cell is DNA?

• Ribosomes

• Nucleus

• Mitochondria

• Cell membrane

What are the bases of DNA?

• Cysteine, adenosine, tyrosine, guanine

• Adenine, guanine, cytosine, thymine

• Adenine, guanine, cytosine, uracil

What type of bonds hold the bases together in pairs?

• Ionic bonds

• Covalent bonds

• Hydrogen bonds

• Double bonds

DNA is double-stranded. RNA is single-stranded. Which molecule is more stable (lasts longer, more resistant to damage)?

• DNA

• RNA

How does DNA contain our genetic code?

• The order of bases corresponds to amino acids, which make proteins to help cells function

• The sugar-phosphate backbone corresponds to amino acids, which make proteins to help cells function

What would you most like to learn about DNA for later presentations?

• How cells repair DNA damage

• How scientists can edit DNA to cure genetic diseases

• How mutations in DNA cause cancer

• How genes are turned on and off in different cells at different times