DNA Replication-PRACTICE 2

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What is the process of DNA replication?

Back

DNA replication is the process by which a DNA molecule makes a copy of itself, resulting in two identical DNA molecules, each containing one old strand and one new strand.

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

Back

The semi-conservative nature of DNA replication ensures that each new DNA molecule retains one original strand, which helps maintain genetic continuity and reduces errors during replication.

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What are the nitrogenous bases in DNA?

Back

The nitrogenous bases in DNA are adenine (A), thymine (T), cytosine (C), and guanine (G).

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How do nitrogen bases pair in DNA?

Back

In DNA, adenine pairs with thymine (A-T) and cytosine pairs with guanine (C-G) through hydrogen bonds.

Front

What role does DNA polymerase play in DNA replication?

Back

DNA polymerase is the enzyme responsible for synthesizing new DNA strands by adding nucleotides complementary to the template strand.

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What is the function of helicase in DNA replication?

Back

Helicase is the enzyme that unwinds and separates the two strands of the DNA double helix, creating a replication fork.

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What is the shape of DNA?

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The shape of DNA is a double helix, resembling a twisted ladder.

Front

What are Okazaki fragments?

Back

Okazaki fragments are short sequences of DNA nucleotides synthesized on the lagging strand during DNA replication.

Front

What is the role of ligase in DNA replication?

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Ligase is the enzyme that joins Okazaki fragments together on the lagging strand, sealing the gaps between them.

Front

What is the function of primase in DNA replication?

Back

Primase synthesizes a short RNA primer that provides a starting point for DNA polymerase to begin DNA synthesis.