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NEETZoologyPrinciples of Inheritance and Variation

How many alleles does the gene I have?

Options

  1. AOne
  2. BTwo
  3. CThree
  4. DFour

Correct answer

C. Three

Step-by-step solution

The gene (I) has three alleles I A , I B and i. The alleles I A and I B produce a slightly different form of the sugar while allele i does not produce any sugar. Because humans are diploid organisms, each person possesses any two of the three I gene alleles . I A and I B are completely dominant over i, in other words when I A and i are present only I A expresses (because i does not produce any sugar), and when I B and i are present I B expresses. But when I A and I B are present together they both express their own

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