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NEETZoologyMolecular Basis of Inheritance

Which type of DNA sequence is more likely to show polymorphism?

Options

  1. ACoding DNA sequence
  2. BNon-coding DNA sequence
  3. CDNA sequence in somatic cells
  4. DDNA sequence in germ cells

Correct answer

B. Non-coding DNA sequence

Step-by-step solution

In simple terms, if an inheritable mutation is observed in a population at high frequency, it is referred to as DNA polymorphism. The probability of such variation to be observed in noncoding DNA sequences would be higher as mutations in these sequences may not have any immediate effect/impact on an individual’s reproductive ability. These mutations keep on accumulating generation after generation, and form one of the basis of variability/polymorphism. There are a variety of different types of polymorphisms ranging

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