Which one of the following discoveries involving dna happened first?

a. griffith learned that a chemical changed harmless cells into harmful cells.
b. sequencing an entire human genome was completed.
c. hershey and chase used bacteriophages to confirm that dna was the genetic material in genes.
d. avery discovered that dna was responsible for storing and passing information through generations.

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Plz ! a frog has a genetic mutation in skin cells that causes part of its skin to turn orange the frog will not pass this genetic mutation onto its offspring because, a. the offspring will inherit skin cells from the other parent. b. mutated skin cells cannot divide and produce daughter skin cells. c. skin cells do not contribute genetic material to sex cells. d. parents do not contribute genetic material to their offspring.

Will mark brainliest. (20 points) many have pigments structures known as eyespots that detect direction of light. a. b. archaebacteria c. protists d. none of the above