DNA Unit Exam

Which arrow is pointing to the sugar?

Which arrow is pointing to the phosphate?

Tags

NGSS.HS-LS1-1

Which arrow is pointing to the nitrogenous base?

Tags

NGSS.HS-LS1-1

Which arrow is pointing to the hydrogen bond?

Where is the 5' ends? (there's 2 of them!)

Tags

NGSS.HS-LS1-1

Where is the 3' ends? (there's 2 of them!)

Tags

NGSS.HS-LS1-1

What 3 parts make up a nucleotide?

• sugar

• phosphate

• nitrogenous base

• hydrogen bond

Tags

NGSS.HS-LS1-1

What holds DNA sugars together?

• Phosphates

• Covalent bonds
• Ionic bonds
• Hydrogen bonds

Which direction is DNA read?

• 3' to 5'
• Top to bottom
• Right to left
• 5' to 3'

Describe Chargaff’s rule?

• The amount of adenine (A) is equal to the amount of cytosine (C)
• The amount of thymine (T) is equal to the amount of cytosine (C)
• The amount of adenine (A) is equal to the amount of thymine (T), and the amount of guanine (G) is equal to the amount of cytosine (C)
• The amount of adenine (A) is equal to the amount of guanine (G)