Identify the $INCORRECT$ statement with reference to the regulation of gene expression.

  • A
    It is the metabolic,physiological,or environmental conditions that regulate the expression of genes.
  • B
    The development of an embryo is coordinated by several sets of genes.
  • C
    $A$ polypeptide chain is formed as a result of gene expression.
  • D
    It is a single-step process by which a gene is regulated and its product is synthesized.

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