Mutations

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What is a mutation?

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A mutation is a change in the DNA sequence of an organism's genome.

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What is a chromosomal mutation?

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A chromosomal mutation involves changes to the structure or number of chromosomes.

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What is a gene?

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A segment of DNA that encodes for a protein.

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What is a point mutation?

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A point mutation is a change in a single nucleotide in 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 a deletion mutation?

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A deletion mutation involves the loss of a segment of DNA from a chromosome.

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What is a duplication mutation?

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A duplication mutation occurs when a segment of DNA is copied and inserted into the genome.

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What is an inversion mutation?

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An inversion mutation occurs when a segment of DNA is reversed within the chromosome.

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What is translocation in genetics?

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Translocation is a chromosomal mutation where a segment of one chromosome is transferred to another chromosome.

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What is the difference between a gene and a chromosome?

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A gene is a specific sequence of DNA that codes for a protein, while a chromosome is a structure that contains many genes.