Where are instructions for traits found? A. On chromosomes

B. On the nucleus

D. On genes

C. On the cell walls

What is a gene ? a) a section of a protein that codes for dna. b) the alternate version of a trait. c) the visible trait in the f1 generation. d) a section of dna that codes for a specific trait .

Witch type of microscope is used to view very small cell components like proteins and dna?

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?