Question

DNA involved in forming structural genes is

• A. Less than 1%
• B. About 10%
• C. 33%
• D. About 50%.

Answer 1

The correct option is A Less than 1%

A structural gene is a gene that codes for any RNA or protein product other than a regulatory factor. A term derived from the lac operon, structural genes are typically viewed as those containing sequences of less than 1% of DNA corresponding to the amino acids of a protein that will be produced, as long as said protein does not function to regulate gene expression. Structural gene products include enzymes and structural proteins.

So, the correct answer is 'Less than 1%.'