Which one of the following discoveries involving dna happened first?
a. chargaff discovered that base pairing was consistent in samples of dna.
b. griffith learned that a chemical changed harmless cells into harmful cells.
c. avery discovered that dna was responsible for storing and passing information through generations.
d. hershey and chase used bacteriophages to confirm that dna was the genetic material in genes.

in situ hybridization has been widely used for research applications, including clinical cytogenetics, gene mapping, tumor biology and studies of chromosome evolution.

hi, natural selection of the peppered moth during the industrial revolution in 19th-century england is an example of an outlier in the study of evolution. during this time, pollution from factories filled the forests, coating trees in a layer of soot—turning white trees black

mark as brainlest

gokuson