DNA_6

Why is DNA replicated before every cell division?

• A) To create genetic diversity

• B) To repair damaged DNA

• C) To ensure each daughter cell receives an identical copy

• D) To increase the number of genes

What is the main purpose of DNA replication?

• A) To change the genetic information

• B) To create a new DNA structure

• C) To repair damaged DNA

• D) To produce identical copies of DNA

How does the double helix structure of DNA contribute to the process of replication?

• A) It allows DNA to change shape easily.

• B) It prevents DNA from replicating.

• C) It provides a template for the creation of new strands.

• D) It hinders the binding of complementary bases.

What is the term for the process of unzipping the double helix during DNA replication?

• A) Transcription

• B) Translation

• C) Replication

• D) Denaturation

How are the two new DNA strands created during replication?

• A) They are synthesized from scratch.

• B) They are produced from existing RNA strands.

• C) They are built up by complementary base-pairing onto the old strands.

• D) They are generated from separate genetic material.

Which process of DNA replication results in the formation of two identical double-stranded DNA molecules from one original molecule?

• A) Transcription

• B) Translation

• C) Semiconservative replication

• D) Conservative replication

What is the role of complementary base-pairing in DNA replication?

• A) To introduce errors in the new DNA strands

• B) To ensure the stability of DNA structure

• C) To form hydrogen bonds between bases

• D) To generate single-stranded DNA molecules

What does the term "semiconservative replication" mean in the context of DNA replication?

• A) Replicating only one strand of DNA

• B) Replicating both strands of DNA completely

• C) Creating two identical DNA molecules, each with one original and one new strand

• D) Replicating DNA only in cells with half the usual amount

What is the complementary base pair for adenine (A) in DNA replication?

• A) Cytosine (C)

• B) Thymine (T)

• C) Guanine (G)

• D) Uracil (U)

During DNA replication, which enzyme is responsible for unwinding and separating the double helix?

• A) DNA polymerase

• B) RNA polymerase

• C) Helicase

• D) Ligase