Identify the incorrect statement

• A

  A single gene product may produce more than one effect. 

• B

  Dominance is not an autonomous feature of a gene or the product that it has information for.

• C

  The unmodified (functioning) allele, which represents the original phenotype is the dominant allele.

• D

  When I^A and I^B are present together they both express their own types of sugars: this is because of incomplete dominance.