DNA and Molecular Biology

What is the process for making another DNA copy of a chromosome?

• replication

• transcription

• translation

• chromatin

Which choices describe DNA replication?

• semiconservative

• produces two pieces of DNA identical to the original

• products are half original and half new

• all of the above

Tags

NGSS.HS-LS3-2

What is the enzyme responsible for DNA replication?

• DNA polymerase

• RNA polymerase

• ribosome

• nucleolus

When in the cell cycle is DNA replication?

• S phase of interphase

• Go of interphase

• mitosis

• meiosis

Which enzyme is responsible for adding nucleotides?

• Ligase

• Helicase

• DNA polymerase I

• DNA polymerase III

Which sequence of DNA bases would pair with this partial strand
CAT TCA CTG

• ATG TGA CAG
• TAC ACT GTC
• GTA AGT GAC
• CAT TCA CTG

The enzyme that unwinds the DNA to prepare for replication

• helicase
• replicase
• polymerase
• synthase

Based on the diagram, how many origins of replication are represented?

• 1
• 2
• 3
• 4

Tags

NGSS.HS-LS3-2

If the percentage of DNA is made of 30% Thymine, what is the correct percentage of Guanine?

• 30
• 15
• 20
• 60

The DNA nucleotide is composed of three parts. Which two components make up the nucleotide backbone?

• ribose sugar and base
• ribose sugar and phosphate group
• nitrogen base and deoxyribose sugar
• deoxyribose sugar and phosphate group