Chapter 14: From DNA to Protein: Gene Expression

What is complementary base pairing in DNA?

• A) A-T, G-C

• B) A-G, T-C

• C) A-C, T-G

• D) A-T, C-G

Tags

NGSS.HS-LS1-1

What are the steps in DNA replication?

• Unwinding, Priming, Elongation, Termination

• Unwinding, Elongation, Ligating, Termination

• Unwinding, Priming, Elongation, Proofreading

• Initiation, Elongation, Proofreading, Termination

Where does DNA replication begin?

• Centromere

• Replication fork

• Origin of replication

• Telomere

What is DNA polymerase responsible for?

• Unwinding the DNA

• Synthesizing RNA primers

• Adding nucleotides to the growing DNA strand

• Joining Okazaki fragments

What is a primer in DNA replication?

• A) A protein that binds to DNA

• B) A short strand of nucleotides needed to start replication

• C) A site where DNA polymerase starts replication

• D) An enzyme that joins nucleotides

What are Okazaki fragments?

• Fragments of RNA

• Short pieces of the leading strand

• Short pieces of the lagging strand

• Fragments that form during protein synthesis

What is the role of DNA ligase?

• To unwind the DNA

• To add nucleotides

• To link Okazaki fragments

• To bind the primer

Which replication model describes each double helix having one old and one new strand?

• Conservative

• Dispersive

• Semiconservative

• Fragmentary

What did the Meselson-Stahl experiment show?

• DNA replication is dispersive

• DNA replication is semiconservative

• DNA replication is conservative

• DNA is synthesized in a circle

What is the central dogma of molecular biology?

• DNA → RNA → Protein

• DNA → Protein → RNA

• RNA → DNA → Protein

• RNA → Protein → DNA

Tags

NGSS.HS-LS1-1