Witch experiment most likely has a greater reliability and why

Based on the results of this study, what questions remain unanswered? how can these questions guide future research

In dna, only the_ varies from one nucleotide to another. base phosphate sugar amino acid

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.