Which of the following statement is incorrect ?

Options

A. For every hormone there is a gene
B. For every protein there is a gene
C. For production of every enzyme there is a gene
D. For every molecule of fat there is a gene

Explanation

To determine which statement is incorrect, we need to analyze each statement provided in the question:

1. **Statement A**: For every hormone, there is a gene.
- Hormones are typically proteins or peptides that are synthesized based on the instructions provided by specific genes. Therefore, this statement is correct.

2. **Statement B**: For every protein, there is a gene.
- Proteins are made up of amino acids and are synthesized according to the genetic code. Each protein is encoded by a specific gene. Hence, this statement is also correct.

3. **Statement C**: For the production of every enzyme, there is a gene.
- Enzymes are specialized proteins that catalyze biochemical reactions. Like other proteins, enzymes are produced based on the instructions from genes. Thus, this statement is correct as well.

4. **Statement D**: For every molecule of fat, there is a gene.
- Fats (lipids) are not directly coded by genes. While the synthesis of certain fats may be influenced by enzymes (which are proteins coded by genes), there is no specific gene for every molecule of fat. Therefore, this statement is incorrect.

Based on the analysis, the incorrect statement is **Statement D**: "For every molecule of fat, there is a gene."