Question

What type of DNA was discovered by investigating why some fruit flies have wing spots and others don’t?

Answer 1

Step-by-step explanation:

While studying white blood cells, Miescher isolated a previously unknown type of molecule that was slightly acidic and contained a high percentage of phosphorus. Miescher named this molecule "nuclein," which was later changed to "nucleic acid" and eventually to "deoxyribonucleic acid," or DNA.

Some fruit flies have wing spots and others don't because of the way they are using the gene, not because they didn't have it. Although both flies have the paintbrush gene, research found that there was a strand of D.N.A. that differed in those flies that had the wing spots.

Answer 2

Paintbrush gene switch on and off

Step-by-step explanation:

The study on the Fruit fly by Sean Carroll showed that the expression of a trait is controlled by the switch which turns on and off the genes involved in the spots on the wings.

The gene which is responsible for the wing spots is known as paintbrush genes and when they are activated by the switch express the traits and when switched off do not express the trait.

Thus, in the case of wing spots in the fruit fly, the flies with spots show an expression of the paintbrush genes and without wings do not show the expression of genes.

Thus, the Paintbrush gene switches on and off is correct.