Which of the following statement is incorrect regarding the band region of polytene chromosome?

The correct option is C. Feulgen negative area.
Polytene chromosomes are the giant chromosomes first found in the salivary gland, trachea and other body parts of dipteran insects. They are euchromatic in nature and contain large amounts of DNA, small amounts of RNA and certain basic proteins. The chromosome is divided into dark bands/bands (stain positive) and interbands (stain negative). The band is Feulgen positive or stained by Feulgen stain. So, the correct answer is 'Feulgen negative area'.