Q. Satellite DNA is important because it
A) codes for enzymes needed for DNA replication.
B) codes for proteins needed in cell cycle.
C) shows high degree of polymorphism in population and also the same degree of polymorphism in an individual, which is heritable from parents to children.
D) does not code for proteins and is same in all members of the population.
Explanation
Satellite DNA is repeated multiple times in genome. It contains VNTRs of varying size and thus, it shows high degree of polymorphism. It is used in DNA fingerprinting to determine an individual’s identity by analyzing their characteristic satellite DNA.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.