DNA Replication

Which of the following units are repeatedly joined together to form a strand of DNA?

• amino acids
• nucleotides
• fatty acids
• polysaccharides

The enzyme that unwinds the DNA to prepare for replication

• helicase
• replicase
• polymerase
• synthase

DNA replication results in two DNA molecules,

• each one with two original strands
• each one with two new strands
• each one with one new strand and one original strand
• one with two new strands and the other with two original strands

order of replication

• 3, 4, 2, 1
• 3, 1, 4, 2
• 2, 1, 4, 3
• 3, 4, 1, 2

A process in which DNA has the unique ability to make an exact copy of itself.

• Replication
• Translation
• Transcription

Which enzyme is responsible for adding nucleotides?

• Topoisomerase
• DNA Polymerase
• Ligase
• Primase

Nitrogenous bases are joined by which type of bond?

• polar bonds
• ionic bonds
• covalent bonds
• hydrogen bonds

Adenine bonds with ______________.

• Guanine
• Thymine
• Cytosine
• Adenine

Guanine bonds with ______________.

• Adenine
• Guanine
• Cytosine
• Thymine

Which 2 molecules forms the sides (backbone) of the DNA ladder?

• deoxyribose and adenine
• deoxyribose and a hydrogen bond
• sugar and the nucleus
• deoxyribose (sugar) and phosphate