Which of these statements is true? a. mitosis brings genetic variety to a species. b. meiosis involves two cycles of cell division. c. mitosis produces four identical cells. d. meiosis your body heal itself.

Dna is always read in the whereas rna is read in .

Astudent analyzed ears of corn that demonstrated two traits in the f2 kernels, purple or white colors and smooth on wrinkled shapes. a tabulation of 135 individual kernels gave the following results: purple and smooth = 75 white and smooth = 28 purple and wrinkled = 24 white and wrinkled = 8 what would be the only phenotype present in the f1 ger

How can a geological time scale best be reconstructed? a) comparing vestigial structures in living species b) comparing homologous structures in living species c) examining homologous structures in fossil remains d) examining the written records of scientists from past cultures