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Satellite DNA is important because it:

1. shows high degree of polymorphism in population and also the same degree of polymorphism in an individual, which is heritable from parents to children.
2. does not code for proteins and is same in all members of the population
3. codes for enzymes needed for DNA replication
4. codes for proteins needed in cell cycle.

Correct answer: shows high degree of polymorphism in population and also the same degree of polymorphism in an individual, which is heritable from parents to children.

Solution

Satellite DNA is highly repetitive and highly polymorphic, so it varies greatly among individuals while remaining consistent in all cells of the same individual. Because these patterns are inherited, they are useful in DNA fingerprinting and population studies.

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