DNA Replication Practice

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

• amino acids
• nucleotides
• fatty acids
• polysaccharides

The enzyme that unzips 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

Okazaki fragments form on the:

• lagging strand
• leading strand
• base-pairs
• 5' end

Which of the following is required for DNA replication to occur?

• DNA helicase
• DNA ligase
• DNA polymerase
• all of these

During replication, what enzyme adds complimentary bases?

• helicase
• synthesase
• ligase
• polymerase

The separation of the two single strands of DNA creates a ‘Y’ shape?

• enzyme

• unzip

• A replication fork

What strand is copied faster?

• Leading
• Lagging

DNA replication occurs during ​ (a)   .

• interphase
• metaphase
• telophase
• anaphase
• prophase

Why does DNA replicate?

• To create another copy for the new cell
• To create a duplicate copy in case the original gets damaged
• To create a new copy to replace the damaged original