Biology I: DNA

Who famously pieced together the double helix model of DNA?

• Watson and Crick

• Rosalind Franklin

• Hershey and Chase

• Chargaff

Who captured an image that led to the discovery of DNA's structure?

• Watson and Crick

• Rosalind Franklin

• Hershey and Chase

• Chargaff

Who discovered (through working with viruses) that DNA is the genetic material?

• Watson and Crick

• Rosalind Franklin

• Hershey and Chase

• Chargaff

Who devised the rule that adenine is always present in equal amounts as thymine, and cytosine is always present in equal amounts as guanine.

• Watson and Crick

• Chargaff

• Rosalind Franklin

• Hershey and Chase

What sort of molecule is DNA?

• Lipid

• Carbohydrate

• Nucleic Acid

• Protein

Which elements are present in a molecule of DNA?

• CHO

• CHON

• CHONP

• CHOS

What is the monomer that builds DNA?

• Carb

• Amino acid

• Nucleotide

• Lipid

Which of these is NOT part of a nucleotide?

• Sugar

• Phosphate

• Lipid

• Nitrogenous base

Which 2 components of a nucleotide make up DNA's 'backbone?'

• Sugar and base

• Base and phosphate

• Sugar and phosphate

• Phosphate and protein

Which type of bond holds the two DNA strands together between the bases?

• Hydrogen

• Covalent

• Ionic

• Metallic