In the 1920s a dye was developed that bound to DNA and stained nuclei in direct proportion to the amount of DNA present in cells. The resulting experiments
A) provided circumstantial evidence that DNA is the genetic material.
B) proved DNA is the genetic material.
C) demonstrated that all species had the same amount of nuclear DNA.
D) demonstrated that diploid and haploid cells could not have differing amounts of DNA.
E) confirmed that DNA was an important component of mitochondria and chloroplasts.

Question

Quizplus · Accepted Answer

The experiment provided circumstantial evidence that DNA is the genetic material, as the amount of DNA present in a cell was proportional to the amount of genetic material present. It did not definitively prove that DNA was the genetic material, as other components of the nucleus could have also been contributing to the staining.

In the 1920s a Dye Was Developed That Bound to DNA