DNA Structure

What does DNA stand for?

• Deoxyribonucleic acid

• Doublenucleic acid

• Do Not Assess

• Deribonucleic acid

What is the importance of DNA?

• It does nothing

• It looks cool

• It is the genetic code for life

• It does some stuff

How many different nucleotides are found in our DNA?

• 3

• 4

• 5

• 6

When the two strands of our DNA combine, only certain nucleotides/nitrogenous bases can combine. Adenine pairs with ​ (a)   , and Guanine pairs with ​ (b)   ​

• Thymine
• Cytosine
• Adenine
• Guanine

What is the name of the rule that tells which nucleotides/nitrogenous bases can pair up?

• Avery's Rule

• Griffith's Rule

• Franklin's Rule

• Chargaff's Rule

Which famous scientist used x-rays to capture the first photograph of DNA?

• Erwin Chargaff

• Rosalind Franklin

• Watson and Crick

• Charles Avery

If we were to pick apart a piece of DNA, what type of chemical bond would be found WITHIN a strand of that DNA?

• Covalent bond

• Hydrogen Bond

• Ionic Bond

• van der Waals forces

If we were able to zoom in on a piece of DNA, what type of chemical bond would be seen BETWEEN the strands of DNA?

• Covalent bond

• Hydrogen bond

• Ionic bond

• van der Waals forces

What TWO parts of the nucleotide make up the backbone of the DNA strand?

• Phosphate

• Nitrogenous base

• Hydrogen bonds

• 5-Carbon Sugar

Who are the two scientists that created the first accepted model of DNA?

• Watson and Crick

• Holmes and Watson

• Rosalind Franklin

• Avery and McCleod