Front

What is a mutation?

Back

A mutation is a change in the order, number, or type of bases in the genetic code.

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What is a nonsense mutation?

Back

A nonsense mutation is a type of substitution mutation that results in a premature stop codon, leading to incomplete protein synthesis.

Front

What is a substitution mutation?

Back

A substitution mutation is a type of mutation where one base is replaced by another in the DNA sequence.

Front

What is an insertion mutation?

Back

An insertion mutation occurs when one or more bases are added to the DNA sequence, potentially altering the reading frame.

Front

What is a deletion mutation?

Back

A deletion mutation involves the loss of one or more bases from the DNA sequence, which can also affect the reading frame.

Front

What is a frameshift mutation?

Back

A frameshift mutation is caused by insertions or deletions that change the reading frame of the genetic code, often resulting in significant changes to the protein.

Front

What is a silent mutation?

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A silent mutation is a change in the DNA sequence that does not alter the amino acid sequence of the resulting protein.

Front

What is the significance of codons in mutations?

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Codons are sequences of three nucleotides that correspond to specific amino acids; mutations can change codons, affecting protein synthesis.

Front

What is the difference between missense and nonsense mutations?

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A missense mutation results in a different amino acid being incorporated into a protein, while a nonsense mutation creates a stop codon.

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How can mutations affect an organism?

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Mutations can lead to changes in physical traits, affect survival, and may be beneficial, harmful, or neutral.