etG DNA Replication 1.14.25

The purpose of replication is to

• eliminate DNA

• make more DNA

• change the DNA

The enzyme that unzips DNA by breaking hydrogen bonds is

• ligase

• helicase

• DNA polymerase

• primase

DNA polymerase is called "the builder" because it

• digs a foundation

• makes new strands of DNA

• breaks hydrogen bonds

Which of the following are the correct pairings of DNA nucleotides?

• A-T

• A-C

• C-T

• C-G

Match the following

• Indicates whee DNA replication begins

• Polymerase

• builds the complimentary DNA strand

• Primase

• "unzips" the DNA

• Ligase

• bonds DNA fragments together

• Helicase

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

Place the following in sequential order
1. Recoil
2. Straightens the double helix
3. Breaks Hydrogen bonds
4. Adds Free nucleotides

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

What are the gaps between the newly synthesized DNA on the lagging strand called?

• Okazaki fragments
• Polymer gaps
• Helicase fragments
• Acidic gaps

Name this structure

• double helix
• nucelotide
• twisted ladder
• hydrogen bond

Tags

NGSS.HS-LS1-1