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What is an SNP?Question 1 choicesChoice A., a single nucleotide polymorphismChoice B., a location where individual alleles differ by one base pairChoice C., a genetic difference that can occur between different individualsChoice D., All of these choices are correct.

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Answer:

D. All of these choices are correct.

Explanation:

A SNP (Single Nucleotide Polymorphism) is a variation, in the sequence of the DNA between different individuals, of a single nucleotide (A, T, G or C) in a particular position of the genome.

The variants of the DNA sequences are called alleles.

The variation must be present in at least 1% of the general population to be considered a polymorphism instead of just a point mutation.