DNA Replication

What is the process by which a cell copies its DNA before cell division?

• Transcription

• Translation

• DNA Replication

• Mutation

During which phase of the cell cycle does DNA replication occur?

• G2 phase

• S phase

• G1 phase

• M phase

Where does DNA replication occur in eukaryotic cells?

• Cytoplasm

• Nucleus

• Ribosome

• Mitochondria

Which of the following is NOT a component of a nucleotide?

• Deoxyribose sugar

• Phosphate group

• Amino acid

• Nitrogen base

What is the base-pairing rule for Adenine (A) in DNA?

• A pairs with C

• A pairs with G

• A pairs with T

• A pairs with U

What is the term for the original strand used to guide DNA synthesis?

• Complementary strand

• Template strand

• Lagging strand

• Leading strand

What is the significance of the semi-conservative nature of DNA replication?

• Each new DNA molecule has two new strands

• Each new DNA molecule has two old strands

• Each new DNA molecule has one old and one new strand

• Each new DNA molecule is completely new

What is the Y-shaped region where DNA is being unwound called?

• Replication bubble

• Replication fork

• Replication site

• Replication loop

What are Okazaki fragments?

• Long fragments formed on the leading strand

• Long fragments formed on the lagging strand

• Short fragments formed on the lagging strand

• Short fragments formed on the leading strand

What is the role of a primer in DNA replication?

• To repair DNA errors

• To allow DNA polymerase to start building DNA

• To synthesize new DNA strands

• To unwind the DNA