Q160 / 180 · NEET 2015 (Phase 2) · Zoology

Satellite DNA is important because it:

  • Correct answer
    A
    Shows high degree of polymorphism in population and also the same degree of polymorphism in an individual, which is heritable from parents to children.
  • B
    Does not cade for proteins and is same in all members of the population.
  • C
    Codes for enzymes needed for DNA replication.
  • D
    Codes for proteins needed in cell cycle.

Solution

Satellite DNA are the repetitive DNA which do not code for any protein. They show high degree of polymorphism and forms the basis of DNA fingerprinting.

Since DNA from every tissue from an individual show the same degree of polymorphism, they become very useful identification tool in forensic applications.

Hence, the correct answer is option: 'A'.

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