DNA Replication Practice

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

Why is it crucial that living things are able to replicate their DNA?

• Each cell must have its own DNA

• Less copies of DNA are needed when a new cell is created

• A cell needs multiple copies of DNA

• Only muscle cells need DNA 

Tags

NGSS.HS-LS1-4

If a person suffered from a disorder where their DNA fragments were unable to fill in the missing slots in between the fragments of the lagging strand, they would most likely have a disorder that affected which enzyme?

• DNA Helicase

• DNA Ligase

• DNA polyermase

• RNA Polymerase

Which shows the correct complementary base pairing for DNA?

• C-A, T-G

• A-G, C-T

• C-G, U-A

• T-A, G-C

Enzyme that connects the DNA to the backbone (glues)

• Ligase

• Polymerase

• Helicase

• Primase

Nitrogenous bases are joined by which type of bond?

• polar bonds

• ionic bonds

• covalent bonds

• hydrogen bonds

What is responsible for holding the two strands of the DNA double helix together?

• hydrogen bonds

• alleles

• London dispersion forces

• deoxyribose sugars

What are the nucleotides made of?

• Sugar, Phosphate, nitrogen base

• Phosphate, Adenine, nitrogen base

• Thymine, Adenine, Cytomine

• Phosphate, Nitrogen, Adenine

In what phase of the cell cycle does DNA replication take place?

• G1

• S

• G2

• M

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.