DNA and DNA Replication

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What is DNA?

Back

DNA (Deoxyribonucleic Acid) is the molecule that carries the genetic instructions for life. It is composed of two strands that coil around each other to form a double helix.

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What is the function of DNA?

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DNA serves as the storage molecule for genetic information, which is essential for the growth, development, and functioning of living organisms.

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What are the building blocks of DNA?

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The building blocks of DNA are nucleotides, which consist of a deoxyribose sugar, a phosphate group, and a nitrogenous base.

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What are the four nitrogenous bases in DNA?

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

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How do nitrogenous bases pair in DNA?

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

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What is the structure of DNA?

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DNA has a double helix structure, resembling a twisted ladder, with the sugar and phosphate forming the sides and the nitrogenous bases forming the rungs.

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What is DNA replication?

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DNA replication is the process by which a cell makes an identical copy of its DNA before cell division.

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What enzyme is primarily responsible for DNA replication?

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DNA polymerase is the enzyme primarily responsible for synthesizing new DNA strands during replication.

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What is the role of helicase in DNA replication?

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Helicase is the enzyme that unwinds and separates the two strands of the DNA double helix during replication.

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What is the significance of the complementary base pairing in DNA?

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Complementary base pairing ensures accurate replication of DNA and the preservation of genetic information.