DNA Replication, Protein Synthesis, and Mutations Review

Front

What is a mutation?

Back

A mutation is a change in the DNA sequence that can lead to changes in the structure and function of proteins.

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Are all mutations harmful?

Back

No, not all mutations are harmful; some can be beneficial or neutral.

Front

What forms the backbone of the DNA ladder?

Back

The backbone of the DNA ladder is formed by deoxyribose (sugar) and phosphate.

Front

What is the process of DNA replication?

Back

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

Front

What does semiconservative replication mean?

Back

Semiconservative replication means that each new DNA molecule consists of one old strand and one new strand.

Front

What is the role of DNA polymerase in DNA replication?

Back

DNA polymerase is the enzyme that synthesizes new DNA strands by adding nucleotides complementary to the template strand.

Front

What is a deletion mutation?

Back

A deletion mutation occurs when one or more nucleotides are removed from the DNA sequence.

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What is a substitution mutation?

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A substitution mutation occurs when one nucleotide is replaced by another in the DNA sequence.

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What is the significance of mutations in evolution?

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Mutations introduce genetic variation, which is essential for evolution and adaptation.

Front

What is the central dogma of molecular biology?

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The central dogma states that genetic information flows from DNA to RNA to protein.