1 Which of the following is similar among all living organisms pn Earth?
A. physical appearance
B. social behavior
C.
cellular function
D.
all of these

In order to study genetic mutations, scientists must study genetic material. which statement describes the genetic material scientists are most likely studying? a) they study alleles that contain chromosomes, which are rna.b) they study alleles that contain genes, which are chromosomes.c) they study chromosomes that contain genes, which are dna segments.