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Cellular and Molecular Biology

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Microsatellites

CELLS-BAY9H1

Satellite DNA is a series of tandemly repeated sequences found in the genomes of many organisms; microsatellites are one type of these.

Which of the following statements about microsatellites is NOT correct?

A

The length of a single repeat in a microsatellite is usually from 2 to 5 bp.

B

The number of repeats in a microsatellite usually changes by unequal crossing over.

C

Some mutations in microsatellites can cause phenotypic differences or even disease.

D

Microsatellites are useful in matching DNA samples to particular individuals because they tend to be highly variable in total length.