Mutations

Front

What is a mutation?

Back

A mutation is a change in a gene, group of genes, or chromosome that results in a change in the proteins produced.

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What is a deletion mutation?

Back

A deletion mutation involves the loss of all or part of a chromosome.

Front

What is a substitution mutation?

Back

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

Front

What is an insertion mutation?

Back

An insertion mutation occurs when one or more nucleotide bases are added to a DNA sequence.

Front

What is an inversion mutation?

Back

An inversion mutation occurs when a segment of a chromosome is reversed end to end.

Front

What is translocation in genetics?

Back

Translocation is a mutation that occurs when a part of one chromosome breaks off and attaches to another chromosome.

Front

What is the effect of mutations on proteins?

Back

Mutations can lead to changes in the amino acid sequence of proteins, potentially altering their function.

Front

What is a frameshift mutation?

Back

A frameshift mutation occurs when nucleotides are added or deleted from the DNA sequence, changing the reading frame.

Front

What is the difference between a point mutation and a frameshift mutation?

Back

A point mutation involves a change in a single nucleotide, while a frameshift mutation involves the addition or deletion of nucleotides.

Front

What is the significance of mutations in evolution?

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Mutations are a source of genetic variation, which is essential for evolution and natural selection.