DNA Replication Exit Ticket

Front

What is DNA replication?

Back

DNA replication is the process by which a cell makes an exact copy of its DNA, ensuring that each new cell has the same genetic information.

Front

What is the purpose of DNA replication?

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The purpose of DNA replication is to ensure that each new cell has a complete set of chromosomes (DNA) before cell division.

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What does 'semi-conservative' mean in the context of DNA replication?

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Semi-conservative means that each new DNA molecule consists of one original (parent) strand and one newly synthesized strand.

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What are the main steps of DNA replication?

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1. Enzymes break hydrogen bonds between nitrogen bases. 2. The double helix unzips. 3. Free nucleotides are added to the matching bases. 4. Two new DNA molecules are formed.

Front

What role do enzymes play in DNA replication?

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Enzymes facilitate the breaking of hydrogen bonds between nitrogen bases and help in the addition of free nucleotides to the growing DNA strand.

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What happens to the DNA strands during replication?

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The two strands of the DNA double helix separate, allowing each strand to serve as a template for the formation of a new complementary strand.

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Why is it important for DNA to be replicated accurately?

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Accurate DNA replication is crucial to prevent mutations and ensure that each new cell functions properly with the correct genetic information.

Front

What is the significance of free nucleotides in DNA replication?

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Free nucleotides are the building blocks that pair with the exposed bases on the template strands to form new DNA strands.

Front

What is the role of DNA polymerase in replication?

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DNA polymerase is the enzyme that adds nucleotides to the growing DNA strand and ensures the correct base pairing.

Front

What is meant by 'leading strand' and 'lagging strand' in DNA replication?

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The leading strand is synthesized continuously in the direction of the replication fork, while the lagging strand is synthesized in short segments (Okazaki fragments) away from the fork.