Double Helix

What shape does the structure of DNA resemble?

• Single helix

• Double helix

• Triple helix

• Quadruple helix

What is the significance of the double helix structure of DNA?

• It allows DNA to replicate accurately

• It produces energy for cellular processes

• It prevents DNA from being damaged

• It enables DNA to be more soluble in water

Match the letter to the part.

a

b

c

d

e

Phosphate

Hydrogen Bonds

Covalent Bond

Nitrogen Bases (2)

Deoxyribose Sugar

Tags

112.42.c.7.A

What shape is the structure of DNA?

• Single helix

• Double helix

• Quadruple helix

• Triple helix

Tags

NGSS.HS-LS1-1

Who established the structure of DNA?

• Darwin and Mendel

• Curie and Franklin

• Watson and Crick

• Newton and Galileo

Tags

NGSS.HS-LS1-1

What are the sides of the DNA ladder made of?

• Nitrogen bases

• Amino acids

• Alternating sugar and phosphate molecules

• Carbon and hydrogen bonds

Tags

NGSS.HS-LS1-1

What is the 'Base-Pair Rule'?

• Guanine pairs with cytosine

• Adenine pairs with thymine

• Cytosine pairs with adenine

• Adenine pairs with guanine

Tags

NGSS.HS-LS1-1

What does DNA stand for?

• Dinucleic Acid

• Dinucleotide Acid

• Deoxyribonucleic Acid

• Deoxynucleotide Acid

Tags

NGSS.HS-LS1-1

Which of the following is not a nitrogen base in DNA?

• Adenine

• Cytosine

• Guanine

• Uracil

Tags

NGSS.HS-LS1-1

What is DNA replication?

• The copying of DNA

• The mutation of genes

• The process of creating RNA

• The division of a cell into two