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 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

Which of the following must happen first in order for DNA replication to occur?

• DNA polymerase binds to the leading strand
• DNA is unwound
• Hydrogen bonds form between bases
• chromosomes condense

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

Which enzyme is responsible for forming bonds between the Okazaki fragments?

• Ligase

• Helicase

• DNA Polymerase 1

• DNA Polymerase 3

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

• Replication
• Translation
• Transcription

The process of DNA replication is called semi conservative because it results in

• none of these
• Two DNA molecules.  One original molecule and one with two new strands
• two exact copies with new strands
• two identical molecules, each with 1 original strand and one new.

What strand is copied faster?

• Leading
• Lagging