DNA Structure and Replication

Adenine pairs with

• Thymine

• Thyme

• Guanine

• Glutamine

The backbone of DNA is made of

• base pairs

• sugars and phosphates

• only sugars

• only phosphates

The first step in DNA replication is

• to unwind and unzip the two strands

• to break the backbone in half so the sequence can be copies

• to attach new nucleotides

• to proof read the sequence

Why is DNA important?

• it is very small and very complicated
• it's in everything
• it serves as the blueprint for traits of all living things
• because we eat it every day for energy

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

Guanine bonds with ______________.

• Adenine
• Guanine
• Cytosine
• Thymine

Which shows the correct complementary base pairing for DNA?

• C-A, T-G
• A-G, C-T
• C-G, U-A
• T-A, G-C

Which sequence of DNA bases would pair with this partial strand
ATG TGA CAG

• ATG TGA CAG
• TAC ACT GTC
• GTA AGT GAC
• CAT TCA CTG

What does DNA stand for?

• Deoxyribonucleic acid
• Denitrogenous acid
• Deribonucleic acid
• Diribonucleic acid

X outlines a(n) ___________.

• amino acid
• nitrogen base 
• nucleotide
• nitrogen base pair

Tags

NGSS.HS-LS1-1

The molecule pictured is a building block of _______.

• a lipid

• DNA
• a carbohydrate
• a protein

Tags

NGSS.HS-LS1-1